{"title":"Sound Level Meters","description":"\u003cdiv align=\"center\"\u003e\n\u003cspan style=\"FONT-SIZE: 14pt\"\u003e\u003cspan style=\"FONT-WEIGHT: bold\"\u003eSound Level Meters\u003cbr\u003e\u003c\/span\u003e\u003c\/span\u003e\u003cbr\u003e\u003cdiv align=\"left\"\u003e\n\u003cspan style=\"font-size: 10pt; font-family: Arial;\"\u003eSound Meters or Sound Level Meters (SLM) are used to provide an objective measurement of sound pressure levels. The most common form of measurement of sound in the United States or English system is in decibels (db) and metric users use MicroPascals (uPa). Loud noise(s) at your workplace or home at best can be very disturbing and may even cause hearing damage over time. As humans each perceives sound differently sound level meters provide a accurate and repeatable \"objective\" measurement that can be used to help solve sound and ambient noise volume issues at home or to help ensure a safer OSHA-compliant workplace. RDI's Knowledge Base includes charts showing examples of sound levels from many sources.\u003cbr\u003e\u003ca href=\"http:\/\/www.reliabilitydirectstore.com\/kb_results.asp?cat=18\" target=\"_self\" title=\"Knowledge Base Articles on Sound and Noise\"\u003e\u003cbr\u003e\u003c\/a\u003e\u003c\/span\u003e\u003cdiv align=\"center\"\u003e\n\u003ca href=\"http:\/\/www.reliabilitydirectstore.com\/kb_results.asp?cat=18\"\u003e\u003cspan style=\"font-size: 10pt; font-family: Arial;\"\u003ePlease Visit our Knowledge Base for more Information on Sound and Noise!\u003c\/span\u003e\u003c\/a\u003e\u003cbr\u003e\u003cspan style=\"font-size: 10pt; font-family: Arial;\"\u003e\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","products":[{"product_id":"extech-407732-kit-low-high-range-sound-level-meter-kit","title":"Extech 407732-KIT Low\/High Range Sound Level Meter Kit","description":"\u003cdiv\u003e\n\u003cspan style=\"font-weight: bold;\"\u003eLow\/High Range Sound Level Meter Kit\u003cbr\u003e\u003cbr\u003e\u003c\/span\u003e\u003cbr\u003e\u003cp\u003e\n\tThe Extech 407732 Sound Level Meter Kit is a high accuracy instrument that meets ANSI and IEC 651 Type 2 \n\tstandards. The Extech 407732 sound level meter has high (65 to 130dB) and low (35 to 100dB) measuring \n\tranges enabling its use in a variety of environments. Functions of the Extech 407732 sound level meter \n\tinclude data hold and max hold. The backlit display aids viewing in dimly lit areas. The Extech 407732 \n\tsound level meter ships complete with microphone wind screen and 9V battery. An optional NIST certificate \n\tis also available.\n\u003c\/p\u003e\n\u003cp\u003e\n\tThe Extech 407732 Kit ships complete with the 407732 Sound Meter, microphone wind screen, calibration screw \n\tdriver, 9V battery, plus 407722 Sound Calibrator with 9V battery. Supplied in an attractive hard carrying \n\tcase that provides protection and organization for your meter and accessories.\n\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cbr\u003e\u003cp\u003e\u003ci\u003e\u003cspan style=\"font-weight: bold;\"\u003eApplications:\u003c\/span\u003e\u003c\/i\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eEnforcing community noise ordinances \n\u003c\/li\u003e\n\u003cli\u003eMeeting government safety issues (OSHA) \n\u003c\/li\u003e\n\u003cli\u003eInstalling audio systems \n\u003c\/li\u003e\n\u003cli\u003eProduct noise certificate and reduction\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cspan style=\"font-style: italic;\"\u003e\u003cb\u003e\u003cbr\u003eFeatures:\u003c\/b\u003e\u003cbr\u003e\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cul\u003e\u003cspan style=\"font-style: normal;\"\u003e\n\u003cli\u003e\n\u003cspan style=\"font-style: normal;\"\u003eHigh accuracy meets ANSI and IEC 651 Type 2 standards\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan style=\"font-style: normal;\"\u003eHigh and Low measuring ranges: 35 to 100dB (low) and 65 to 130dB (high)\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan style=\"font-style: normal;\"\u003eData Hold and Max Hold functions\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan style=\"font-style: normal;\"\u003eBacklit LCD display to view in dimly lit area\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan style=\"font-style: normal;\"\u003eIncludes \u003cb\u003e407722\u003c\/b\u003e 1kHz 94dB sound calibrator (±5% accuracy)\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan style=\"font-style: normal;\"\u003eIncludes plastic carrying case for meter and calibrator\u003cbr\u003e\u003cbr\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\u003c\/span\u003e\u003c\/ul\u003e\n\u003cbr\u003e\u003ci\u003e\u003cb\u003eFunctions:\u003c\/b\u003e\u003c\/i\u003e\u003cbr\u003e\u003cbr\u003e\u003cul\u003e\n\u003cli\u003eRange:\u003cul\u003e\n\u003cli\u003eLow: 35 to 100dB\u003c\/li\u003e\n\u003cli\u003eHigh: 65 to 130dB\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e2000 count LCD\u003c\/li\u003e\n\u003cli\u003eAccuracy: ±1.5dB\u003c\/li\u003e\n\u003cli\u003eData hold and max hold functions\u003c\/li\u003e\n\u003cli\u003eCondenser microphone 0.5 inch (12.7mm)\u003c\/li\u003e\n\u003cli\u003eBacklit display to view in dimly lit area\u003c\/li\u003e\n\u003cli\u003eComplete with microphone wind screen and 9V battery\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Extech Instruments Corp.","offers":[{"title":"Do Not Include NIST","offer_id":48343328719060,"sku":"EXT-407732-KIT","price":559.0,"currency_code":"USD","in_stock":true},{"title":"Include NIST Calibration Certificate","offer_id":48343328751828,"sku":"EXT-407732-KIT-NIST","price":754.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0837\/0451\/2724\/files\/EXT-407732-KIT-2.jpg?v=1785144328"},{"product_id":"extech-407732-two-range-sound-level-meter-with-backlit-display","title":"Extech 407732 Two Range Sound Level Meter with Backlit Display","description":"\u003cp\u003e\u003cspan style=\"font-weight: bold;\"\u003eFeatures\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eHigh accuracy meets ANSI and IEC 651 Type 2 standards \n\u003c\/li\u003e\n\u003cli\u003eHigh and Low measuring ranges \n\u003c\/li\u003e\n\u003cli\u003eData Hold and Max Hold functions \n\u003c\/li\u003e\n\u003cli\u003eBacklit display to view in dimly lit area \n\u003c\/li\u003e\n\u003cli\u003eComplete with microphone wind screen and 9V battery\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan style=\"font-weight: bold;\"\u003eApplications:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eEnforcing community noise ordinances \n\u003c\/li\u003e\n\u003cli\u003eMeeting government safety issues (OSHA) \n\u003c\/li\u003e\n\u003cli\u003eInstalling audio systems \n\u003c\/li\u003e\n\u003cli\u003eProduct noise certificate and reduction\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan style=\"font-weight: bold;\"\u003eSpecifications:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eDisplay Counts: 2000 count LCD \n\u003c\/li\u003e\n\u003cli\u003eRange: Low: 35 to 100dB; High 65 to 130dB \n\u003c\/li\u003e\n\u003cli\u003eBasic Accuracy: +\/-1.5dB \n\u003c\/li\u003e\n\u003cli\u003eWeighting (A \u0026amp; C): Yes \n\u003c\/li\u003e\n\u003cli\u003eResponse Time (Fast\/Slow): Yes \n\u003c\/li\u003e\n\u003cli\u003eCondenser Microphone: 0.5\" (12.7mm) \n\u003c\/li\u003e\n\u003cli\u003eDimensions: 8.2x2.1x1.25\" (210x55x32mm) \n\u003c\/li\u003e\n\u003cli\u003eWeight: 8.1oz (230g)\u003c\/li\u003e\n\u003c\/ul\u003e\n","brand":"Extech Instruments Corp.","offers":[{"title":"Do Not Include NIST","offer_id":48343329177812,"sku":"EXT-407732","price":259.0,"currency_code":"USD","in_stock":true},{"title":"Include NIST Calibration Certificate","offer_id":48343329210580,"sku":"EXT-407732-NIST","price":454.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0837\/0451\/2724\/files\/EXT-407732-2.jpg?v=1785144327"},{"product_id":"extech-407744-94db-sound-level-meter-calibrator","title":"Extech 407744 94dB Sound Level Meter Calibrator","description":"\u003cp\u003e\u003cspan style=\"FONT-WEIGHT: bold\"\u003eFeatures\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eCalibrates and verifies Sound Level Meter operation \n\u003c\/li\u003e\n\u003cli\u003eFor use on Sound Level Meters with 0.5\" or 1.0\" microphones \n\u003c\/li\u003e\n\u003cli\u003eDurable die-cast, aluminum housing \n\u003c\/li\u003e\n\u003cli\u003e1kHz sine wave at 94dB\/114dB is generated to an accuracy of 5% (frequency) and +\/- 0.8dB \n\u003c\/li\u003e\n\u003cli\u003e3 position switch (OFF\/94dB\/114dB) \n\u003c\/li\u003e\n\u003cli\u003eTotal Harmonic Distortion (THD) \u0026lt;2% at 94dB \n\u003c\/li\u003e\n\u003cli\u003eComplete with two 9 V batteries, carrying case, and screwdriver \n\u003c\/li\u003e\n\u003cli\u003eBattery test position with battery status LED indicates if battery is good\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan style=\"FONT-WEIGHT: bold\"\u003eSpecifications \/ Range \/ Accuracy\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eFrequency \/ 1000Hz \/ +\/-5% \n\u003c\/li\u003e\n\u003cli\u003eSound Pressure Level \/ 94dB (407744); 94dB\/114dB (407766) \/ +\/-0.5dB (94dB), +\/-dB (114dB) \n\u003c\/li\u003e\n\u003cli\u003eDistortion : \u0026lt;2% Total Harmonic Distortion (THD) \n\u003c\/li\u003e\n\u003cli\u003eOperating Temperature: 32 to 122deg.F (0 to 50deg.C) \n\u003c\/li\u003e\n\u003cli\u003ePower Supply: Two Heavy duty, alkaline 9 V battery \n\u003c\/li\u003e\n\u003cli\u003ePower Consumption: Approx. 10mA DC \n\u003c\/li\u003e\n\u003cli\u003eDimensions: 2.2\" diameter x 5.6\" long (50x 127mm) \n\u003c\/li\u003e\n\u003cli\u003eWeight: 0.75lbs. (340g)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n","brand":"Extech Instruments Corp.","offers":[{"title":"Default Title","offer_id":48343329308884,"sku":"EXT-407744","price":409.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0837\/0451\/2724\/files\/EXT-407744-2.jpg?v=1785144329"},{"product_id":"extech-407750-sound-level-meter-with-pc-interface","title":"Extech 407750 Sound Level Meter with PC Interface","description":"\u003cp\u003e\u003cspan style=\"FONT-WEIGHT: bold\"\u003eFeatures\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eAuto\/Manual ranging from 30 to 130dB in 6 ranges \n\u003c\/li\u003e\n\u003cli\u003eMeets ANSI and IEC Type 2 standards \n\u003c\/li\u003e\n\u003cli\u003eA and C selectable frequency weightings \n\u003c\/li\u003e\n\u003cli\u003eFast and Slow selectable response times \n\u003c\/li\u003e\n\u003cli\u003eBackground noise absorber mode for machine noise measurements filters ambient noise \n\u003c\/li\u003e\n\u003cli\u003eLarge 3 1\/2 digit display with 0.1dB resolution with backlighting and analog bargraph \n\u003c\/li\u003e\n\u003cli\u003eElectret condenser microphone provides 1.5dB accuracy \n\u003c\/li\u003e\n\u003cli\u003eMin\/Max plus analog output and tripod mount \n\u003c\/li\u003e\n\u003cli\u003eMax Hold latches maximum value on display \n\u003c\/li\u003e\n\u003cli\u003eRS-232 interface for capturing data directly on a PC, optional Windows compatible software \n\u003c\/li\u003e\n\u003cli\u003eComplete with batteries and carrying case\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan style=\"FONT-WEIGHT: bold\"\u003eApplications\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eMachine noise evaluation \n\u003c\/li\u003e\n\u003cli\u003eOSHA compliance testing \n\u003c\/li\u003e\n\u003cli\u003eCommunity noise measurement \n\u003c\/li\u003e\n\u003cli\u003eNoise ordinance \n\u003c\/li\u003e\n\u003cli\u003ePC interface for data collection\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan style=\"FONT-WEIGHT: bold\"\u003eSpecifications:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eDigital Display: 3-1\/2 digit (1999 count) Autorange LCD \n\u003c\/li\u003e\n\u003cli\u003eBargraph Display: 50dB display range (1dB resolution) \n\u003c\/li\u003e\n\u003cli\u003eMeasurement Range: 30 to 130dB (35 to 130dB for \"C\" weighting) \n\u003c\/li\u003e\n\u003cli\u003eResolution: 0.1dB \n\u003c\/li\u003e\n\u003cli\u003eAccuracy: +\/-1.5dB @ 94dB for a 1kHz sine wave \n\u003c\/li\u003e\n\u003cli\u003eMicrophone: Electret Condensor .24\" (6mmdia.) type \n\u003c\/li\u003e\n\u003cli\u003eFrequency Weighting: \"A\" and \"C\" type \n\u003c\/li\u003e\n\u003cli\u003eTime Response: Slow\/Fast \n\u003c\/li\u003e\n\u003cli\u003eSampling time: updates every 0.5 seconds \n\u003c\/li\u003e\n\u003cli\u003eMeasurement frequency range: 31.5Hz to 8KHz \n\u003c\/li\u003e\n\u003cli\u003eAnalog output: AC: 0.707Vrms (full scale); DC 10mVDC\/dB \n\u003c\/li\u003e\n\u003cli\u003eApplicable Standards: IEC 651 Type 2, ANSI S1.4 Type 2 \n\u003c\/li\u003e\n\u003cli\u003ePower Supply: 9V battery, optional AC adaptor \n\u003c\/li\u003e\n\u003cli\u003eDimensions: 10x3.1x1.5\" (256x80x38mm) \n\u003c\/li\u003e\n\u003cli\u003eWeight: 8.5oz (240g)\u003c\/li\u003e\n\u003c\/ul\u003e\n","brand":"Extech Instruments Corp.","offers":[{"title":"Do Not Include NIST","offer_id":48343330062548,"sku":"EXT-407750","price":355.0,"currency_code":"USD","in_stock":true},{"title":"Include NIST Calibration Certificate","offer_id":48343330095316,"sku":"EXT-407750-NIST","price":550.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0837\/0451\/2724\/files\/EXT-407750-2.jpg?v=1785144334"},{"product_id":"extech-407730-digital-sound-level-meter-with-analog-output","title":"Extech 407730 Digital Sound Level Meter with Analog Output","description":"\u003cdiv\u003e\n\u003cspan style=\"display: inline !important; float: none; background-color: rgb(255, 255, 255); color: rgb(82, 82, 82);  font-size: 16px; font-style: normal; font-variant: normal; font-weight: 400; letter-spacing: normal; orphans: 2; text-align: left; text-decoration: none; text-indent: 0px; text-transform: none; -webkit-text-stroke-width: 0px; white-space: normal; word-spacing: 0px;\"\u003eThe 407730 sound level meter measures from 40 to 130dB with an accuracy of 2dB. The digital display offers a 0.1dB resolution and features a fast responding analog bar graph. User can choose A or C weighting. Max Hold captures highest reading. Includes microphone wind screen and four AAA batteries.\u003c\/span\u003e\u003cb\u003e\u003cbr\u003e\u003cbr\u003eFeatures:\u003c\/b\u003e\n\u003c\/div\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e2dB accuracy with 0.1dB resolution\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003eA\u0026amp;C weighting\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003eAC analog output\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003eRecord Max\/Min values over time\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003eAuto power off and Max Hold function\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003eUtilizes 0.5\" (12.7mm) condenser microphone\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003eTripod mountable\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e40 to 130 dB measuring range\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003eFast\/Slow response time\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003eTripod mountable\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003eComplete with 4-AAA batteries and microphone wind screen\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\n","brand":"Extech Instruments Corp.","offers":[{"title":"Do Not Include NIST","offer_id":48343330193620,"sku":"EXT-407730","price":114.0,"currency_code":"USD","in_stock":true},{"title":"Include NIST Calibration Certificate","offer_id":48343330226388,"sku":"EXT-407730-NIST","price":309.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0837\/0451\/2724\/files\/EXT-407730-2.jpg?v=1785144327"},{"product_id":"extech-40778a-integrating-sound-level-datalogger-with-usb","title":"Extech 40778A Integrating Sound Level Datalogger with USB","description":"\u003cdiv class=\"itemDesc more\" style=\"height: 473px; overflow: hidden;\"\u003e\n\u003ch4\u003eFeatures\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e4-digit multifunction LCD with analog bargraph\u003c\/li\u003e\n\u003cli\u003ePrecise linearity over wide range (100dB)\u003c\/li\u003e\n\u003cli\u003eDisplay modes: SPL, SPL MIN\/MAX, SEL, and Leq\u003c\/li\u003e\n\u003cli\u003eProgrammable integrating time\u003c\/li\u003e\n\u003cli\u003eA and C Frequency weighting\u003c\/li\u003e\n\u003cli\u003eImpulse\/Fast\/Slow response settings\u003c\/li\u003e\n\u003cli\u003eDatalogging function records up to 32,000 records\u003c\/li\u003e\n\u003cli\u003eReal time calendar\/clock\u003c\/li\u003e\n\u003cli\u003eAnalog and alarm output features can be used to connect with \nFrequency analyzers, chart recorders, external dataloggers, and sound \nlevel alarms\u003c\/li\u003e\n\u003cli\u003eBuilt-in USB interface with included Windows® datalogging software\u003c\/li\u003e\n\u003cli\u003eTripod mount\u003c\/li\u003e\n\u003cli\u003eMeets IEC 61672-1, 60651\/60804 Type 2 and ANSI S1.4 Type 2 specifi cations\u003c\/li\u003e\n\u003cli\u003eComplete with windscreen, adjustment screwdriver, USB cable, Windows® compatible software, battery, and case \u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cbr\u003e\u003ch4\u003eIncludes:\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n    Sound Level Meter\u003c\/li\u003e\n\u003cli\u003eWindscreen\u003c\/li\u003e\n\u003cli\u003eUSB Cable\u003c\/li\u003e\n\u003cli\u003eBatteries\u003c\/li\u003e\n\u003cli\u003eAdjustment screw driver\u003c\/li\u003e\n\u003cli\u003eWindows compatible Software\u003c\/li\u003e\n\u003cli\u003eCarry Case\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"Extech Instruments Corp.","offers":[{"title":"Do Not Include NIST","offer_id":48343331045588,"sku":"EXT-407780A","price":1849.0,"currency_code":"USD","in_stock":true},{"title":"Include NIST Calibration Certificate","offer_id":48343331078356,"sku":"EXT-407780A-NIST","price":2044.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0837\/0451\/2724\/files\/EXT-407780A-2.jpg?v=1785144337"},{"product_id":"extech-407790a-datalogging-real-time-octave-band-analyzer-with-pc-interface","title":"Extech 407790A Datalogging Real Time Octave Band Analyzer with PC Interface","description":"\u003cp\u003e\u003cspan style=\"FONT-WEIGHT: bold\"\u003eReal Time Octave Band Analyzer\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eType 2 Integrating Sound Level Meter with Octave and 1\/3 Octave Band Real Time Display \n\u003c\/li\u003e\n\u003cli\u003e160x160 dot matrix backlit LCD displays Leq, LE, Lmax, Lmin, and Lp \n\u003c\/li\u003e\n\u003cli\u003eBuilt-in memory stores up to 12,280 records in SLM mode and 1024 data points in 1\/1 or 1\/3 octave mode \n\u003c\/li\u003e\n\u003cli\u003eStored data can be easily transferred to a PC via RS-232 interface and analyzed using software and cable provided \n\u003c\/li\u003e\n\u003cli\u003eA, C, and Flat weighting with Fast\/Slow response time \n\u003c\/li\u003e\n\u003cli\u003e25Hz to 10kHz frequency response \n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003eMeets ANSI and IEC Type 2 standards\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003eReal time clock with Year, Month, Day, Hour, Minute, and Second display\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n","brand":"Extech Instruments Corp.","offers":[{"title":"Do Not Include NIST","offer_id":48343331143892,"sku":"EXT-407790A","price":5100.0,"currency_code":"USD","in_stock":true},{"title":"Include NIST Calibration Certificate","offer_id":48343331176660,"sku":"EXT-407790A-NIST","price":5300.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0837\/0451\/2724\/files\/EXT-407790A-2.jpg?v=1785144341"},{"product_id":"extech-407760-usb-sound-level-datalogger","title":"Extech 407760 USB Sound Level Datalogger","description":"\u003cdiv\u003e\u003cspan style=\"FONT-STYLE: italic; FONT-SIZE: 10pt\"\u003eHigh accuracy sound-level datalogging of up to 129,920 records\u003c\/span\u003e\u003c\/div\u003e\u003cspan style=\"FONT-WEIGHT: normal\"\u003e\n\u003ch3\u003e\u003cspan style=\"FONT-SIZE: 10pt; FONT-WEIGHT: bold\"\u003eFeatures:\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan style=\"FONT-SIZE: 10pt; FONT-WEIGHT: normal\"\u003eUSB interface for easy setup and data download\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"FONT-SIZE: 10pt; FONT-WEIGHT: normal\"\u003e30 to 130dB range\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"FONT-SIZE: 10pt; FONT-WEIGHT: normal\"\u003eDatalogging capability up to 129,920 records\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"FONT-SIZE: 10pt; FONT-WEIGHT: normal\"\u003eSelectable data sampling rate: 50ms, 500ms, 1s, 2s, 5s, 10s, 60s\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"FONT-SIZE: 10pt; FONT-WEIGHT: normal\"\u003eRecords readings with real time clock\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"FONT-SIZE: 10pt; FONT-WEIGHT: normal\"\u003eTwo start methods: programmed (from PC) or manual\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"FONT-SIZE: 10pt; FONT-WEIGHT: normal\"\u003e0.5\" electret microphone\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\u003cspan style=\"FONT-SIZE: 10pt; FONT-WEIGHT: normal\"\u003eIncludes 3.6V Lithium battery, Windows® compatible software, and windscreen\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003ca href=\"http:\/\/www.extech.com\/instruments\/resources\/flash\/flash.asp?title=407760%20Showcase%20Video\u0026amp;filename=407760-showvid.swf\u0026amp;width=640\u0026amp;height=360\" target=\"_blank\"\u003e\u003cimg align=\"\" alt=\"\" border=\"0px\" src=\"https:\/\/www.reliabilitydirectstore.comhttps:\/\/www.reliabilitydirectstore.com\/v\/vspfiles\/assets\/images\/%21vidicon.jpg\"\u003e\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"http:\/\/www.extech.com\/instruments\/resources\/flash\/flash.asp?title=407760%20Product%20Video\u0026amp;filename=407760-prodvid.swf\u0026amp;width=640\u0026amp;height=360\" target=\"_blank\"\u003e\u003cimg align=\"\" alt=\"\" border=\"0px\" src=\"https:\/\/www.reliabilitydirectstore.comhttps:\/\/www.reliabilitydirectstore.com\/v\/vspfiles\/assets\/images\/%21vidicon.jpg\"\u003e\u003c\/a\u003e\u003c\/p\u003e\n\u003c\/span\u003e","brand":"Extech Instruments Corp.","offers":[{"title":"Default Title","offer_id":48343330324692,"sku":"EXT-407760","price":309.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0837\/0451\/2724\/files\/EXT-407760-2.jpg?v=1785144334"},{"product_id":"extech-407766-94-114db-dual-point-sound-level-meter-calibrator","title":"Extech 407766 94\/114dB Dual Point Sound Level Meter Calibrator","description":"\u003cp\u003e\u003cspan style=\"FONT-WEIGHT: bold\"\u003eFeatures\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eCalibrates and verifies Sound Level Meter operation \n\u003c\/li\u003e\n\u003cli\u003eFor use on Sound Level Meters with 0.5\" or 1.0\" microphones \n\u003c\/li\u003e\n\u003cli\u003eDurable die-cast, aluminum housing \n\u003c\/li\u003e\n\u003cli\u003e1kHz sine wave at 94dB\/114db is generated to an accuracy of 5% (frequency) and +\/-0.8dB \n\u003c\/li\u003e\n\u003cli\u003e3 position switch (OFF\/94dB\/114dB) \n\u003c\/li\u003e\n\u003cli\u003eTotal Harmonic Distortion (THD)\u0026lt;2% at 94dB \n\u003c\/li\u003e\n\u003cli\u003eComplete with two 9V batteries, carrying case, and screwdriver \n\u003c\/li\u003e\n\u003cli\u003eLED indicator lights sup when power is on \n\u003c\/li\u003e\n\u003cli\u003eLevel position to select 94dB or 114dB\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan style=\"FONT-WEIGHT: bold\"\u003eSpecifications: Range \/ Accuracy\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eFrequency: 1000Hz \/ +\/-5% \n\u003c\/li\u003e\n\u003cli\u003eSound Pressure Level: 94dB (407744); 94dB\/114dB \/ +\/- 0.5dB (94dB), +\/-1dB(114dB) \n\u003c\/li\u003e\n\u003cli\u003eDistortion: \u0026lt;2% Total Harmonic Distortion (THD) \n\u003c\/li\u003e\n\u003cli\u003eOperating Temperature: 32 to 122deg.F (0to 50deg.C) \n\u003c\/li\u003e\n\u003cli\u003ePower Supply: Two Heavy duty, alkaline 9V Battery \n\u003c\/li\u003e\n\u003cli\u003ePower consumption: Approx. 10mA DC \n\u003c\/li\u003e\n\u003cli\u003eDimensions: 2.2\" diameter x 5.6\" long (50x127mm) \n\u003c\/li\u003e\n\u003cli\u003eWeight: 0.75 lbs. (340g)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n","brand":"Extech Instruments Corp.","offers":[{"title":"Do Not Include NIST","offer_id":48343331209428,"sku":"EXT-407766","price":519.0,"currency_code":"USD","in_stock":true},{"title":"Include NIST Calibration Certificate","offer_id":48343331242196,"sku":"EXT-407766-NIST","price":714.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0837\/0451\/2724\/files\/EXT-407766-2.jpg?v=1785144335"},{"product_id":"sdl600-sound-level-meter-datalogger","title":"SDL600 Sound Level Meter\/Datalogger","description":"The \u003cb\u003eSDL600 Sound Level Meter \/ Datalogger\u003c\/b\u003e records data on a SD Card in Excel®\n\nformat for easy transfer of data to a pc for analysis.\u003cbr\u003e\u003cbr\u003e\u003ctable\u003e\u003ctbody\u003e\u003ctr\u003e\n\u003ctd\u003e\n\u003cb\u003eFeatures\u003c\/b\u003e:\u003cbr\u003e\u003cbr\u003e\u003cul\u003e\n\u003cli\u003eHigh accuracy ±1.4dB meets ANSI and IEC 61672-1 Type 2 standards\u003c\/li\u003e\n\u003cli\u003e30 to 130dB measurement range\u003c\/li\u003e\n\u003cli\u003eAuto or Manual ranging\u003c\/li\u003e\n\u003cli\u003eAC analog output for connection to an analyzer or recorder\u003c\/li\u003e\n\u003cli\u003eLarge backlit LCD display\u003c\/li\u003e\n\u003cli\u003eStores 99 readings manually and 20M readings via 2G SD card\u003c\/li\u003e\n\u003cli\u003eDatalogger date\/time stamps and stores readings on an SD card in Excel format for easy transfer to a PC\u003c\/li\u003e\n\u003cli\u003eUser programmable sampling rate: 1 to 3600 seconds\u003c\/li\u003e\n\u003cli\u003eMin\/Max, Data Hold, Auto Power Off\u003c\/li\u003e\n\u003cli\u003eBuilt-in PC interface\u003c\/li\u003e\n\u003cli\u003eComplete with 6 AA batteries, SD Card, wind screen, and hard carrying case\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/td\u003e\n\u003ctd\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0837\/0451\/2724\/files\/sdl600.jpg?v=1784669068\" style=\"width: 214px;\"\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\u003c\/tbody\u003e\u003c\/table\u003e\u003cbr\u003e\u003cb\u003eSpecification SDL600\u003c\/b\u003e\u003cbr\u003e\u003cbr\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cb\u003eRange\u003c\/b\u003e\n\u003c\/td\u003e\n\u003ctd\u003e  30 to 130dB (3 ranges)  \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cb\u003eBasic accuracy\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd\u003e  ±1.4dB\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cb\u003eFrequency Range\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd\u003e  \n\t\t\t\t31.5 to 8000Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cb\u003eWeighting\u003c\/b\u003e\n\u003c\/td\u003e\n\u003ctd\u003e  A and C\u003cbr\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cb\u003eResponse Time\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd\u003e  Fast (125ms) \/ Slow (1s)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cb\u003eDatalogging\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd\u003e  20M data records using a 2G SD card\n\t\t\t\n\t\t\t\n\t\t\t\t\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cb\u003eAnalog Output\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd\u003e  AC\u003cbr\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cb\u003ePC Interface\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd\u003e  USB\u003cbr\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cb\u003eDimensions\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd\u003e  9.8 x 2.9 x 1.9\" (250 x 73 x 48mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cb\u003eWeight\u003c\/b\u003e\n\u003c\/td\u003e\n\u003ctd\u003e  18.3oz (520g)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003eScope of Supply:\u003c\/b\u003e\u003cbr\u003e\u003cbr\u003e\u003cul\u003e\n\u003cli\u003eSDL600 Sound Level Meter\u003c\/li\u003e\n\u003cli\u003eSix \"AA\" batteries\u003c\/li\u003e\n\u003cli\u003eWind Screen\u003c\/li\u003e\n\u003cli\u003eHard Carrying Case\u003c\/li\u003e\n\u003cli\u003eManual\u003c\/li\u003e\n\u003c\/ul\u003e\u003cb\u003e\u003cbr\u003e\u003cbr\u003e\u003c\/b\u003e \u003cbr\u003e","brand":"Extech Instruments Corp.","offers":[{"title":"Do Not Include NIST","offer_id":48343346512084,"sku":"EXT-SDL600","price":769.0,"currency_code":"USD","in_stock":true},{"title":"Include NIST Calibration Certificate","offer_id":48343346544852,"sku":"EXT-SDL600-NIST","price":964.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0837\/0451\/2724\/files\/EXT-SDL600-2.jpg?v=1785144526"},{"product_id":"extech-sl130w-sound-level-alert-with-green-leds","title":"Extech SL130W Sound Level Alert with Green LED's","description":"\u003ch1 style=\"box-sizing: border-box; font-size: 30px; margin: 5px 0px 10px;  font-weight: 400; line-height: 35px; color: rgb(0, 146, 143); font-variant: normal; letter-spacing: normal; border-radius: 0px; text-shadow: none;\"\u003e\n\u003cspan class=\"bolded-headline\" style=\"box-sizing: border-box; color: rgb(0, 0, 0) !important;  border-radius: 0px;\"\u003eExtech SL130W:\u003c\/span\u003e Sound Level Alert with Alarm\u003c\/h1\u003e\u003cspan style=\"box-sizing: border-box; color: rgb(51, 51, 51);  font-size: 14px; font-variant: normal; background-color: rgb(255, 255, 255);\"\u003e\u003c\/span\u003e\u003ch2 style=\"box-sizing: border-box;  font-weight: 400; line-height: 33px; color: rgb(102, 102, 102); margin-top: 5px; font-size: 24px; font-variant: normal; border-radius: 0px; text-shadow: none;\"\u003e30-130dB Meter with built-in under\/over-range LEDs indicators\u003c\/h2\u003e\u003cspan style=\"box-sizing: border-box; color: rgb(51, 51, 51);  font-size: 14px; font-variant: normal; background-color: rgb(255, 255, 255);\"\u003e\u003c\/span\u003e\u003cul id=\"features\" style=\"box-sizing: border-box; font-size: 14px; font-variant: normal; letter-spacing: normal; border-radius: 0px; color: rgb(51, 51, 51); \"\u003e\n\u003cli style=\"box-sizing: border-box; border-radius: 0px; color: rgb(85, 85, 85);\"\u003eWall, desk or tripod mount with optional 15ft (5m) microphone extension cable for remote monitoring\u003c\/li\u003e\n\u003cli style=\"box-sizing: border-box; border-radius: 0px; color: rgb(85, 85, 85);\"\u003eBright LEDs (red flashing or green) can be read from 100ft (30m)\u003c\/li\u003e\n\u003cli style=\"box-sizing: border-box; border-radius: 0px; color: rgb(85, 85, 85);\"\u003eContinuous monitoring of sound level in 3 ranges: 30 to 80dB, 60 to 110dB, 80 to 130dB\u003c\/li\u003e\n\u003cli style=\"box-sizing: border-box; border-radius: 0px; color: rgb(85, 85, 85);\"\u003eUser adjustable high or low limit (30 to 130dB) with output to drive external relay module\u003c\/li\u003e\n\u003cli style=\"box-sizing: border-box; border-radius: 0px; color: rgb(85, 85, 85);\"\u003eBuilt-in desk, wall and tripod mounts\u003c\/li\u003e\n\u003cli style=\"box-sizing: border-box; border-radius: 0px; color: rgb(85, 85, 85);\"\u003eMeets ANSI Type 2 and EN 60651 accuracy specs - compliant to OSHA\u003c\/li\u003e\n\u003cli style=\"box-sizing: border-box; border-radius: 0px; color: rgb(85, 85, 85);\"\u003eComplete with 100-240V AC 50\/60Hz adaptor and microphone wind cover\u003c\/li\u003e\n\u003c\/ul\u003e\u003cb style=\"box-sizing: border-box; font-weight: bold; color: rgb(0, 0, 0);  font-size: 14px; background-color: rgb(255, 255, 255);\"\u003eFeatures:\u003c\/b\u003e\u003cbr style=\"box-sizing: border-box; color: rgb(0, 0, 0);  font-size: 14px; background-color: rgb(255, 255, 255);\"\u003e\u003cul id=\"features\" style=\"box-sizing: border-box; font-size: 14px; font-variant: normal; letter-spacing: normal; border-radius: 0px; color: rgb(51, 51, 51); \"\u003e\n\u003cli style=\"box-sizing: border-box; border-radius: 0px; color: rgb(85, 85, 85);\"\u003eWall, desk or tripod mount with optional 15ft (5m) microphone extension cable for remote monitoring\u003c\/li\u003e\n\u003cli style=\"box-sizing: border-box; border-radius: 0px; color: rgb(85, 85, 85);\"\u003eBright LEDs (red flashing or green) can be read from 100ft (30m)\u003c\/li\u003e\n\u003cli style=\"box-sizing: border-box; border-radius: 0px; color: rgb(85, 85, 85);\"\u003eContinuous monitoring of sound level in 3 ranges: 30 to 80dB, 60 to 110dB, 80 to 130dB\u003c\/li\u003e\n\u003cli style=\"box-sizing: border-box; border-radius: 0px; color: rgb(85, 85, 85);\"\u003eUser adjustable high or low limit (30 to 130dB) with output to drive external relay module\u003c\/li\u003e\n\u003cli style=\"box-sizing: border-box; border-radius: 0px; color: rgb(85, 85, 85);\"\u003eBuilt-in desk, wall and tripod mounts\u003c\/li\u003e\n\u003cli style=\"box-sizing: border-box; border-radius: 0px; color: rgb(85, 85, 85);\"\u003eMeets ANSI Type 2 and EN 60651 accuracy specs - compliant to OSHA\u003c\/li\u003e\n\u003cli style=\"box-sizing: border-box; border-radius: 0px; color: rgb(85, 85, 85);\"\u003eComplete with 100-240V AC 50\/60Hz adaptor and microphone wind cover\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Extech Instruments Corp.","offers":[{"title":"Do Not Include NIST","offer_id":48343346675924,"sku":"EXT-SL130W","price":329.0,"currency_code":"USD","in_stock":true},{"title":"Include NIST Calibration Certificate","offer_id":48343346708692,"sku":"EXT-SL130W-NIST","price":524.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0837\/0451\/2724\/files\/EXT-SL130W-2.png?v=1785144533"},{"product_id":"extech-sl400-personal-noise-dosimeter-with-usb-interface","title":"Extech SL400 Personal Noise Dosimeter with USB Interface","description":"\u003cspan style=\"color: rgb(74, 74, 74);  font-size: 20px; background-color: rgb(246, 246, 246);\"\u003eSound level monitoring is essential to determine what protective measures are required for employees who are routinely exposed to loud noise. Perform noise surveys in compliance with OSHA, MSHA, DOD, ACGIH, and ISO standards with the Extech SL400 dosimeter. An SL400 noise accumulation survey can determine total sound exposure over an 8-hour period. This compact, lightweight dosimeter can also serve as a sound level meter, logging up to 999,999 readings with sampling times between 1 second and 24 hours. An optional 94 dB calibrator allows you to perform before-and-after calibration checks, per ANSI standards. 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