AMTAST Digital Thermometer Hygrometer with Dew Point Portable Temperature Humidity Meter Monitor Gauge for Office Library Cinema Storeroom Greenhouse

3 in 1 Meter：This digital meter can be used to accurately measure environmental temperature, relative humidity (RH) and dew point. Large LCD Display：Clearly show data of temperature and humidity at the same time, including maximum, minimum and average values. Easy to carry: Ergonomically designed, not only durable but also comfortable to hold and portable to carry. Auto Power Off：Shut down automatically after 20 minutes of no operation to save battery. Wide Application：Suitable for various sites, such as office, library, cinema, storeroom, greenhouse and etc.