IP24 waterproof, protects against water spray, suitable for kitchen, bathroom, bedroom, living room and more. LCD screen displays time, room temperature, indoor humidity (range 15% to 95%), temperature adjustable in °C / °F (range 0 °C to 50 °C / 32 °F to 122 °F), 12-hour AM/PM or 24-hour format, alarm and countdown functions. Total countdown duration is 99 minutes. Three touch keys for control: "1" for 1-minute countdown increment, "10" for 10-minute countdown increment, "CLEAR" to turn off the alarm and return to real-time display mode. Three installation methods: free-standing, wall-mounted, hanging on a hook, or fixed with suction cup on smooth surfaces including wall, glass, tile or mirror. Powered by 2 AAA alkaline batteries (not included), no wires or plugs required. Color: White 1 button: 1 minute for the countdown 10 button: 10-minute countdown CLEAR button: To deactivate the alarm and return to real-time display mode. Type: Humidity Temperature Clock Display: digital LCD Temp. measurement range: 0 °C - 50 °C / 32 °F - 122 °F Humidity measurement range: 15 ~ 95% Maximum countdown duration: 99 minutes Alarm duration: 2 minutes Waterproof rating: IP24 Mounting method: hole, bracket, suction cup Power supply: 2 * AAA alkaline batteries (not included) Certification: CE, RoHS LCD screen size: 8.2 * 7.4cm / 3.2 * 2.9" (L * W) Product size: 11 * 10.6 * 2.9cm / 4.3 * 4.2 * 1.1" (L * W * H)