... for communication loss9, Low battery indicatorRC5001:1, Temperature Range: 5~35 C2, Switching Differential: 1 C3, Power Supply: 2 AA batteries4 ... , Battery Life: 6-12 months5, Sensing Element: NTC6, Operating Temperature: 0~457, Storage Temperature: ... the rear (wall box mounting), right and bottom4, Storage Temperature: -20~555, Operating Humidity: 5~90%6, Dimension: ...