Features:Photoelectric Switch uses the blocking or reflection of the detected object to the beam, to detect the existence of the object.Photoelectric Switch converts the input current into a light signal on the transmitter, and the receiver detects the target object according to the strength or presence of the received light.Objects are not limited to metal, and all objects that reflect light (or block light) can be detected.The switch stays open, and closes when it detects the object in detection range. High precision, quick response, strong anti-interference capability.Specification:Model: E3F-DS30C4Detection Range: 10-30cm, 10%Detection Range Adjustment: sensitivity regulatorDetection Target: transparent/opaque objectResponse Time: 1msOn-delay: 1.5msLight Source: infrared light 660nmCurrent Consumption: N.P type: <20mA, A type: <1.7mAControl Output: N.P type: <300mA, A type: <400mA, J type: <2A Contact Life: 100,000 timesCircuit Protection: N.P.D type: reverse connection protection, surge absorption, load short circuit protection; A type: surge absorptionOperation Environment: -30~65C (no freezing, no condensation), 35-95% RHTemperature Influence: temperature range -30~65C, at +23C: 15% detection distance; temperature range: -25~60 C, at +23 C: 10% detection distanceInsulation Impedance: >50M (DC500 megohmmeter), between charging part and housingHousing Material: ABSDetection Surface (lens): PMMAWeight: 65g (approx.)Package List:1 x Photoelectric Switch .