Wall-hanging or free-standing receiver displays wireless outdoor temperature and monitors indoor temperature. Batteries Required Yes, AA and AAA, Works With 1 Sensor, Thermostate Range F -21-157 outdoor, 32-139 indoor, Weather Resistant Yes, probe, Color Camo, LCD Display Yes, Indicator Type Thermometer, Mounting Type Wall, freestanding, Includes Recording for max. & min. temperature, Dimensions L x W x H in. 3/4 x 2 1/2 x 3 3/4, Battery Included No.