IR Detector. Fresnel optic. Anti-pets. Anti-masking. Range 16X22m. Selectable pet immunity. Double temperature commpensation. Opening tamper and take off. Easy opening and set up. Intelligent walikng test system. Power supply 9.0 - 15 V CC; Traditionaly 7 mA.Dimensions: 9.8 x 5.7 x 4.35 cm. Operating temperature from -10°C to 55°C. Relative humidity from 5 to 93% (Without condensation). Security grade 3 certified.