Wireless Weather Station, -4 Degrees to 158 Degrees F/-20 Degrees to 70 Degrees C, 1 Percent to 99.9 Percent, Primary Scale Humidity, Power Source Battery, Application Indoor, 2.6 in dia 3-Digit LCD Display - 1 in Digit Height, 4 in L x 3 3/4 in W x 1 1/4 in D, Tabletop, Wall-Mount, Temperature Scale Celsius, Fahrenheit