Digital LCD Thermometer Hygrometer Temperature Backlight Humidity Meter Sensor
For with backlight choice, it adds touch switch to turn on backlight and max&min record. Backlight: B Type. Humidity Range: 10%RH~99%RH. Temperature Range: -20℃~+70℃/-4℉ ~158℉. Battery: 2pcs AAA battery(NOT INCLUDED).