Adopt advanced and stable circuit design, very low rate of failure alarm and false alarm. Fine anti-interference-30V/m from 30MHz to 1000MHz Excellent Fresenel optical lens, more powerful ability of capturing of human infrared ray. Automatic alternation pulse count. Dual-layer structure temperature compensation technology, which has solved the problem of interference from normal temperature. ESD,anti electric-strike and interference from mobile phone. Low power consumption. (Less than 10 mA stand by, 17mA alarm) Pulse count for option. (1,2 or 3) Detection range for pet-immunity lens: 12x12m Parameter: Operation voltage current: 9-16V/DC 15mA Detection distance: 12m@100° Installation height: 1.5m-2.4m Sensitivity: L/H for option RFI/ protection: 30V/m 500MHz Alarm output: 100mA/24V Operation temperature: -20℃-40℃ Operation humidity: 5%-95%(RH) Anti white light: 10000LUX Pet immunity: below 20KG Detection speed: 0.2m/s to 3.5m/s Note:This sensor can't work alone, it works with all alarm system which support wired zones. Color:As Shown Material:plastic Package Contents: 1 * 12V Wired Infrared Motion Sensor Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.