Handheld Thermometer Hygrometer, Digital Humidity Meter, Backlight, Meter for Outdoors, Home, Industry, Agriculture

【Dual Display】 - This digital humidity meter is designed to combine the functions of humidity meter and temperature meter, temperature range: -30°C ~ 60°C (-22°F ~ 140°F); humidity range: 0~100% RH. The small hygrometer is enough to easily put it in your pocket. You can take it anywhere anytime. Wide applications: the portable moisture meter can simultaneously measure a wide temperature and humidity range and is used for HVAC, industry, agriculture, meteorology, medicine, everyday life, construction engineer, paranormal calculator, machine room, greenhouse, warehouse. Data storage etc. Multi-function: Psychrometer with adjustable LCD backlight for simultaneous clear display of temperature and humidity data, max hold and min hold function, automatic shut-off without operation to save power. Easy to use: Usually you do not need to calibrate the hygrometer as it was calibrated before delivery. If you want to calibrate it, it requires a primary standard source. We recommend that only professional engineers can calibrate the meter. About us: the hygrometer thermometer comes with an easy to read instruction manual (English language not guaranteed). If you have any problems or suggestions about our moisture meter, please let us know and we offer 7 x 24 hours technical support and customer service.