Passive infrared detector. Anti-pets (up to 36 kgs) unidirectional wireless, range: 12 meters, frequency: 868Mhz. Intelligent digital signal processing, true temperature compensation, protective sensor cover to avoid false alarms caused by insects, pigmented lens for protection against white lights, easy installation by means of support, wall tamper usable in corners. Interior installation, mounting height 2.20 to 2.50 meters. CR123 3V lithium battery included. Dimensions 132 x 67.5 x 56 mm. Compatible with RISCO ™ unidirectional and bidirectional wireless systems. GRADE 2.