Specs

     RF frequency: 868MHz
     Microwave frequency: 10.525GHz
     Detection method: dual PIR and microwave Doppler
     Installation height: 2 meters
     Power supply: 2 1.5V alkaline batteries
     Battery life of up to 5 years
     -10 ° C ~ + 45 ° C operating temperature
     Relative humidity up to 85% (non-condensing)
     Dimensions: 63 (W) x 112 (H) x 62 mm
     EN50131 certification (Grade 2)