1. [Multi Functional] This temperature and humidity meter can be used for detecting relative humidity, ambient temperature, dew point temperature, and wet bulb temperature, with wide measurement range and high precise for dependable results. 2. [High Precise Probe] The temperature humidity meter features high sensitivity, high precise probe, with high refresh rate, providing fast and accurate measurement. It can continuously and accurately detect subtle changes in temperature and humidity, allowing precise control. 3. [Multiple Modes] The temperature humidity meter is equipped with various measurement modes including real time value measurement, maximum value, minimum value, data hold, catering to different measurement requirements. 4. [Clear Visibility] The thermo hygrometer features a double color reverse display screen and flashlight, ensuring clear readings in dark environments and convenient usage in complex surroundings. 5. [Wide Application] This thermo hygrometer can be used in various environments such as refrigerated compartments, laboratories, basements, vegetable greenhouses, warehouses, and outdoor conditions. Item Type: Digital Temperature and Humidity Meter Relative Humidity: Range: 0-99%RH Accuracy: ±3.0%RH (20%-80%), ±4.0%RH (0%-20%, 80%-99%) Resolution: 0.10% Ambient Temperature: Range: -20℃-60℃ (-4℉-140℉) Accuracy: ±1℃ (0℃-45℃), ±1.5℃ (-20℃-0℃, 45℃-60℃), ±2℉ (32℉-113℉), ±3℉ (-4℉-32℉, 113℉-140℉) Resolution: 0.1℃, 0.2℉ Dew Point Temperature: Range: -50℃-60℃ (-58℉-140℉) Accuracy: ±1℃ (0℃-45℃), ±1.5℃ (-50℃-0℃, 45℃-60℃), ±2℉ (32℉-113℉), ±3℉ (-58℉-32℉, 113℉-140℉) Resolution: 0.1℃, 0.2℉ Wet Bulb Temperature: Range: -20℃-60℃ (-4℉-140℉) Accuracy: ±1℃ (0℃-45℃), ±1.5℃ (-20℃-0℃, 45℃-60℃), ±2℉ (32℉-113℉), ±3℉ (-58℉-32℉, 113℉-140℉) Resolution: 0.1℃, 0.2℉