specs

     Communication protocol: ZigBee Pro Home Automation 1.2
     Frequency: 2.4GHz
     Power supply: 2 AA 1.5V alkaline batteries
     Battery life of up to 1.8 years
     -10 ° C ~ + 50 ° C operating temperature
     Operating humidity up to 85% (non-condensing)
     Dimensions: 107.9 x 57.45 x 66 mm