uxcell Security Wired Screw Mounted Gate Door Shutter Magnetic Switch Alarm Product Name : Door Magnetic Switch;Material (external) : Metal;Model : ML-56 Color : Silver Tone;Switch Type : NO;Mount Type : Screw Mounted Fit for : Rolling Gate;Operating Distance : 40 - 60mm;Rated Current : 500mA Rated Power : 10W;Voltage : 100V DC;Size : 4.8 x 2.5 x 1.5cm (L*W*H) Cable Length : 26cm/10";Weight : 156g;Package Content : 1 x Door Magnetic Switch;4 x Screws