Specs

     Communication protocol: Z-Wave Plus 500 module
     Frequency: 868.40MHz
     Power supply: 2 AA alkaline batteries, 3V
     Battery life of up to 1.8 years
     -10 ° C ~ + 45 ° C operating temperature
     Operating humidity up to 85% (non-condensing)
     Dimensions: 84 x 84 x 18 mm