Product Name : Proximity Switch;Type : NPN; : Inductance SensorOutput : Switching Transducer;Sensing Distance : 5mm+/-10%;Supply Voltage : DC 10-30V;Output Current : 200mAFrequency : 700mA;Indicator : Red LED;Size : 3.5 x 1.7 x 1.7cm / 1.4" x 0.7" x 0.7"(L*W*T)Cable Length : ~1.5M / 58";Extenal Material : ABS Resin;Net Weight : 48gColor : As Picture ShowHave a high reliability and long functional life because of the absence of mechanical parts and lack of physical contact between sensor and the sensed object.Used in machine vibration monitoring to measure the variation in distance between a shaft and its support bearing.Package Content : 1 x Proximity SwitchNote:Light 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 +/- 1-3cm.