Transmission Range: 200 ft
Humidity Range: 20%-95%
Indoor Temperature Range: 32°F/122°F and 0°C/50°C
Outdoor Temperature Range: 4°F/140°F and -20°C/60°C(Alkaline Batteries), -40°F/140°F and -40°C/60°C(Lithium Batteries)
Wireless Battery Operated Digital Hygrometer Weather Station Multicolour 1.5 x 5 x 3.5 Inch 1731