Features:
1) Transmitting frequency: 433MHz
2) Indoor temperature: 32 to 140oF with 0.2oF
resolution (0 to 60.0oC with 0.1oC
resolution)
3) Outdoor temperature: -22 to 158oF with 0.2oF
resolution (-30 to 70oC with 0.1oC resolution)
4) Temp accuracy: +/2oF (+/-1oC)
5) Transmitting range: maximum 80 feet (25m) open space
6) Batteries (alkaline recommended): 5 x AAA, 1.5V