HIGH PRECISION DISPLAY: Humidity meter measurement accuracy: ±2℉, Humidity measurement accuracy: ±5%RH. EASY TO INSTALL: Our moisture meter can help you know the current temperature and humidity, built-in opening size (1.81*1.06 inch). If the size is not suitable, it can be fixed with double-sided tape. WIDE TEST RANGE: Humidity meter measuring range: -58℉-158℉, Humidity measurement range: 10%-99%RH. TWO IN: The mini digital hygrometer thermometer with built-in probe, electronic thermometer and hygrometer for measuring temperature and humidity for indoor use. WIDELY USED: The indoor hygrometer thermometer is widely used in greenhouses, gardens, guitar cases, incubators, breeders, offices, warehouses, refrigerators, closets and any other places that require monitoring of temperature and humidity levels., Weight: 0.25794084654 Pounds, Manufacturer: Rtxbvg