uxcell SN04-N 3-Wire NPN NO 4mm Approach Detect Inductive Sensor Proximity Switch DC 10-30V 200 mA Product Name : Proximity Switch;Model : SN04-N;Theory : Inductive Sensor;Wire Type : 3 Wire Type (Brown, Blue, Black) Output Type : NPN NO(Normal Open);Sensor Distance : 4mm(+/-10%);Supply Voltage : DC 10-30V Output Current(Max) : 200 mA;Detect Object : Iron;Sensor Dia : 12mm/0.47" Total Size : 35 x 18 x 18mm/1.4" x 0.7" x 0.7" (L*W*H);Cable Length : 1.2m/3.93ft; External Material : Plastic, Metal Color : Blue, Black;Net Weight : 36g;Package Content : 1 x Proximity Switch;Switch Appearance Type: Rectangle Type