Highlights:Display Dimensions : 5.40" L x 1.69" W x 4.40" HSensor Dimensions : 1.57" L x 0.79" W x 5.12" HTransmitting interval : 50 secondsR F Reception range : 200''Sampling interval : 30 secondsPower source ( Weather Station) : 2AA, IEC, LR6 batteriesIndoor temperature range : 32 F to 122 F (0 C to 50 C)Outdoor temperature range : minus 40 F to 140 F (minus 40 C to 60 C)Receiver power : 2 AA alkaline batteries (Not Included)Sensor Power : 2 AA alkaline batteries (Not Included)Sensor signal strength indicatorLow battery indicatorWireless weather viewing with sleek design at your fingertipsMonitor indoor and outdoor temperature and humidity, track trends and set customizable alerts, all in one convenient deviceAlso, features the heat index and dew point, 6 Moon phase icons, 12/24 hour time (manual time) with snooze alarm, calendar (month, day and date)