HT-6S Indoor Electron Temperature And Humidity Color Digital Display Mini Home Thermometer 1. Temperature range: -20 degrees Celsius - 60 degrees Celsius (-4 degrees Fahrenheit - 140 degrees Celsius) 2. Humidity range: percent 10- percent 99 RH 3. Display: when the temperature is lower than -20 degrees Celsius, it will display LL.L, and when the temperature is higher than 60 degrees Celsius, it will display HH.H 4. Shell material: ABS engineering plastic 5. Power supply: contains a CR2032 button battery 6. Placement method: hook hangingmagnet adsorption 7. Size: about 6.7 x 4.3 x 2.5cm 8. Weight: about 47g Features: 1. Contains a CR2032 button battery for power supply, long-lasting battery life 2. Large screen display, clear reading 3. It can be hung on a hook or by a magnet 4. Simple appearance, light and portable 5. There are monitoring air holes on the back, real-time monitoring of indoor temperature and humidity, sensitive induction