1、Excellent ABS Material: This industrial thermometer hygrometer is made of excellent ABS material, which is rugged, abrasion resistant, erosion resistant, and can adapt to all kinds of harsh environments. 2、Multifunctional: This digital temperature humidity meter is multifunctional with temperature measurement, humidity measurement, data lock, maximum, minimum, average, wet bulb temperature, dew point temperature, synchronized display, low battery reminder, and automatic power off. 3、Multiple Unit Switching: This handheld digital temperature humidity meter features maximum, minimum, average mode, unit switching between Celsius and Fahrenheit, and data storage for up to 99 data units. 4、Handheld Design: This industrial thermometer humidity meter adopts handheld design, compact and lightweight, easy to carry, with auto shut off function, it will automatically shut off within 30 minutes without any operating. 5、Wide Application: This temperature humidity meter has a wide range of applications and is suitable for food storage, warehouse management, agriculture, forestry and animal husbandry, health care, laboratories, public and home environment temperature and humidity measurement and monitoring, and so on. Item Type: Digital Temperature Humidity Meter Material: ABS Working Altitude: 6561ft Display: LCD Sampling Rate: Approx. 1 Second Auto Shut Off: Approx. 30 Minutes Operating Current: Approx. 1mA (Backlight Off) Battery: 1.5V AAA x 3 (Not Included) Temperature Measurement: -20-60°C, +1.0°C / -4-140°F, +2.0°F Dew Point Temperature: -50°C-60°C / -58°F-140°F Wet Bulb Temperature: -20°C-60°C / -4°F-140°F Humidity Measurement: 0-99%RH, +5%RH (Non Condensing Environment) Resolution: 0.1%RH, 0.1°C/0.2°F Size: Approx. 188 x 54 x 34mm / 7.4 x 2.1 x 1.3in 1 x Digital Temperature Humidity Meter 1 x Screwdriver 1 x Velvet Bag 1 x Manual