{"product_id":"extech-rh300-digital-psychrometer","title":"Extech RH300 Digital Psychrometer","description":"\u003cp\u003e\u003cspan style=\"font-weight: bold;\"\u003eFeatures:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eSimultaneous display of %RH, Temperature and Dew point or Wet Bulb or Probe Temperature \n\u003c\/li\u003e\n\u003cli\u003eWet bulb measurements without slinging \n\u003c\/li\u003e\n\u003cli\u003eCalculates T1-T2 differential (Air Temperature minus External Probe Temperature) using optional probe (TP890) and T-2 Dew Point \n\u003c\/li\u003e\n\u003cli\u003eUnique sensor cap design twists to closed position for protection during storage \n\u003c\/li\u003e\n\u003cli\u003eSwitchable °F\/°C temperature units with 0.1° resolution \n\u003c\/li\u003e\n\u003cli\u003eData Hold freezes current reading on display \n\u003c\/li\u003e\n\u003cli\u003eMax\/Min readings \n\u003c\/li\u003e\n\u003cli\u003eAuto power off to save battery life \n\u003c\/li\u003e\n\u003cli\u003eRH300 complete with 2 AAA batteries \n\u003c\/li\u003e\n\u003cli\u003eOptional external temperature probe (TP890)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ca href=\"\/RH305-Digital-Psychrometer-Kit-p\/ext-rh305.htm\"\u003e\u003cp\u003e\u003cspan style=\"font-weight: bold;\"\u003eOptional Kit RH305 Includes:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eRH300 \n\u003c\/li\u003e\n\u003cli\u003eTemperature probe \n\u003c\/li\u003e\n\u003cli\u003e33% and 75% calibration bottles \n\u003c\/li\u003e\n\u003cli\u003eCarrying case \u003c\/li\u003e\n\u003c\/ul\u003e\u003c\/a\u003e\n\u003cp\u003e\u003cspan style=\"font-weight: bold;\"\u003eSpecifications (Range, Max Resolution, Basic Accuracy): \u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eHumidity: 10 to 90%RH, 0.1%RH, ±3%RH \n\u003c\/li\u003e\n\u003cli\u003eTemperature (internal): -4 to 122°F (-20 to 50°C), 0.1°, ±1°F or ±0.6°C \n\u003c\/li\u003e\n\u003cli\u003eTemperature (external): -4 to 158°F (-20 to 70°C), 0.1°, ±1°F or ±0.6°C \n\u003c\/li\u003e\n\u003cli\u003eDew Point: -90.4 to 122°F (-68.0 to 49.9°C) \n\u003c\/li\u003e\n\u003cli\u003eWet Bulb: -6.9 to 122°F (-21.6 to 49.9°C) \n\u003c\/li\u003e\n\u003cli\u003eDimensions: 7x1.9x1\" (178.5x48.4x24.7mm) \n\u003c\/li\u003e\n\u003cli\u003eWeight: 3.3oz (95g)\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Extech Instruments Corp.","offers":[{"title":"Do Not Include NIST","offer_id":48343344152788,"sku":"EXT-RH300","price":135.0,"currency_code":"USD","in_stock":true},{"title":"Include NIST Calibration Certificate","offer_id":48343344185556,"sku":"EXT-RH300-NIST","price":330.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0837\/0451\/2724\/files\/EXT-RH300-2.jpg?v=1785144511","url":"https:\/\/sejqw6-v1.myshopify.com\/products\/extech-rh300-digital-psychrometer","provider":"Reliability Direct Store, LLC","version":"1.0","type":"link"}