1.operating voltage：DC 9V~35V， 2.Power supply non-polar input. 3.standby current: 55uA. alarm current:22mA@DC12V,40mA@DC24V. 4.Anti-EMI and Stain steeless shield,Anti-RFI(20V/m-1GHz). 5.Double Sided Glass Fiber circuit board. 6.MCU processing adopted,eliminate false alarm. 7.Network output/Remote LED indicator. 8.SMT manufacture technology,high stability. 9.Dustproof,mothproof and anti-light interference design. 10.Infrared photoelectric sensor. 11.Automatic reset and power-off reset. 12.detection sensitivity:2.06%/ft. 13.operating temperature: -10℃ ～ +50℃, operating humidity :≤95％RH. 14.Dimension: Φ104*49mm. 15.Execute criterion:GB4715;EN54-7;UL268