ORIA Indoor Outdoor Hygrometer Thermometer, Digital Temperature Humidity Meter with Sensor, LCD Display Wireless Thermometer Humidity Gauge with Alarm Clock, Snooze, Backlight for Home

Product parameters: Indoor temperature range: -4°F - 158°F (-20°C - 70°C) Outdoor temperature range: -40°F - 158°F (-40°C-70°C) Humidity range: 20%-95% Comfort Display: Dry, Comfortable, Wet Temperature display unit: °C/°F optional (default is °C) Temperature Resolution: 0.1°C/°F Humidity Resolution: 1% Refresh rate: 10 seconds. Error: temperature plus or minus 1 ? humidity plus or minus 5% Wireless reception range: 100 meters RF Radio Frequency: 433 MHz time function 1 set of alarm clocks Snooze function Backlight function (backlight duration 30 seconds)