Description This is a multifunctional digital meter, which can be used as thermometer and hygrometer. It is portable and convinient to use. It has a hole for hanging or mounting on the wall, suitable for home, office and other indoor place use. Feature - Color: Black.- Material: ABS and Acrylic.- Size: Approx. 4.5 x 4.5 x 1.5 cm/1.77x1.77x0.59inch.- Temperature range: -50 ~ 70℃.- Measurement error: ±1℃.- Humidity measurement range: 20% ~ 90%.- Humidity display resolution: 1%.- Humidity measurement accuracy: ±5%.- Humidity sampling cycle: 10 seconds (1 minute).- Rated voltage: DC1.5V (1 tablet AG13 button battery).- Working principle: thermistor conversion temperature display.- It is portable and won't take up too much space.- Thermometer measures temperature which can be displayed in Celsius.- Function as a thermometer and hygrometer.- Lightweight and compact, easy to install.- Suitable for all kinds of reptile pet.Packing list: 4 x Digital Thermometer Hygrometer