ITEM NAME:E3JK-R4M12 Retroreflective Photoelectric Switch Sensor w Reflector F7P4 E3JK-R4M12 Retroreflective Photoelectric Switch Sensor w Reflector F7P4 Photoelectric Switch control by infrared ray, as a approach sensor, including a transmitter and receiver in it. A retroreflective arrangement places the transmitter and receiver at the same location and uses a reflector to bounce the light beam back from the transmitter to the receiver. An object is sensed when the beam is interrupted and fails to reach the receiver. Can be applied in security system, manufacturing industry. US users need to buy another voltage transformer(not included here). Product Name : Photoelectric Switch; Model : E3JK-R4M12; Detection Distance : 4m; Work Voltage : AC 24-240VDC 12-240V Supply Voltage : DC 24-240V+/-10% AC 24-240V +/-10%50/60Hz; Relay Output : AC 250V 3A (Max)DC 5V 10mA(Min); Ambient Temperature : Operating:-20 - 55 Degree Storage:-30 - 70 Degree; Response Time : Directional Angle : Sensor:1 - 5 Degree Reflector: 40 Degree Min.; Size : 5 x 5 x 1.8cm / 3.1" x 3.1" x 0.7"(L*W*H); Reflector Panel Size : 6.5 x 4 x 0.8cm/2.6'' x 1.6'' x 0.3'' (L*W*T) Cable Length : 120cm/ 47.2"; Weight : 153g; Indicator Light Color : Red Material : Plastic, Metal; Color : Black, Gray; Package Content : 1 x Photoelectric Switch 1 x Reflector Panel 1 x Mounting Bracket(with screws,nut) Note:Light shooting 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 +/-1-3 cm..1 x Photoelectric Switch. Degree Reflector: 40 Degree Min.;. Reflector Panel Size : 6.5 x 4 x 0.8cm/2.6" x 1.6" x 0.3" (L W T). 1 x Reflector Panel. Indicator Light Color : Red. Directional Angle : Sensor:1 - 5.