... 9V~35V,Power supply non-polar input,Automatic reset and power-off reset,Alarm temperature:57C(135F),Meets EN54- ... NO).alarm current:3mA(NC);15mA(NO). Anti-EMI and Stain steeless shield,Anti-RFI(20V/m-1GHz).Double Sided Glass Fiber ... technology,high stability.Dustproof,mothproof and anti-light interference design. Infrared photoelectric sensor. Automatic reset and power-off reset. detection sensitivity ...