Suitable for home, office, car, schools, hotels, laboratories, kindergartens, aquaculture, instrument workshop, libraries, schools, factories and places equipped with air condition, etc.Mini & DurabilityMini square digital humidity thermometer allows you to easily know the environment temperature and humidity. Small and light enough for saving space and carrying around.Specification:Measuring humidity range :10%-99%RHMeasuring humidity accuracy: 5%Humidity display resolution: 1%RHMeasuring temperature range :0c to 50cMeasurement temperature accuracy: 1cTemperature display resolution: 0.1cInstall panel hole size: D42mmOperating Voltage: 1.5V, one button cell size LR44Material: PVC plasticSize: 1.7in x 1.7in x 0.5in / 44mm x 44mm x 15mmLCD display Color: BlackPackage include:2 x LCD Digital Hygrometer Thermometer