Features WORKING RANGE: Temperature humidity meter, the temperature measuring range is ‑10℃‑50℃ (+14℉‑122℉), the humidity measuring range is 20%‑99%RH. WITH BATTERY: Equipped with 120mAh AAA dry battery, the detector can automatically measure when it is turned on, stable and reliable. HIGH ACCURACY: The handheld thermometer hygrometer has high detection accuracy, accurate reading and no need for manual calibration. WIDE APPLICATION: The tester is widely used in family rooms, apartments, industries, laboratories, greenhouses, warehouses and aquaculture farms. PLASTIC HOUSING: The detector shell is made of excellent ABS plastic, with good toughness, corrosion resistance, aging resistance and long service life. Spec: Item Type: Temperature Humidity Meter Model: HY8 Material: ABS Usage: Widely used in household, apartments, industries, laboratories, greenhouses, warehouses and aquaculture farms Battery: 1 x 120mAh AAA dry battery (built in) Temperature Detection Range: -10℃-50℃ (+14℉-122℉) Humidity Detection Range: 20%-99%RH How to Use: Take out the product and operate according to the user manual. Package List: 1 x Temperature Humidity Meter 1 x User Manual Note: Before using the tester, please open the battery compartment and remove the battery package. Package List 1 x Temperature Humidity Meter 1 x User Manual