[Measurable temperature range] -50～70℃, temperature measurement accuracy: +1.0℃. [Humidity range[measurement] 10% ~ 99% RH, humidity measurement accuracy: ±5% RH, measuring once every 10 seconds. [Product size] 48*28.6*15.2mm.Battery: Two LR44 button batteries.The compact and portable thermometer and hygrometer are suitable for your home.various scenarios. [Thermometer and Hygrometer] This portable thermometer and hygrometer measures humidity in your home.and indoor temperature to help you adjust the temperature.understand indoor air conditions. [Wide range of applications] Mini thermometers and hygrometers are widely used in living rooms, greenhouses, instrument rooms, wine cellars, etc.wine, cellars, warehouses, attics, baby rooms.and changing rooms.