Sensing distance: 10 cm, Operating voltage: 10 - 30 VDC; Ripple < 20% Peak to Peak, Current Consumption: 30 mA(Max), Output method: NPN & PNP Two Output, Output status: Normal open NO type, Output current: 150 mA(Max), Sensor Response Time: 1 ms(Max). ATEN provides Photo Door sensor probes that work in tandem with the Power Distribution Units, which allows the monitoring of a rack mounted enclosure´s door access, notifying users when a door has been opened.