uxcell Stainless Steel Security Store Door Magnetic Reed Switch Contact Alarm Product Name : DoorMagnetic Switch;Material : Stainless Steel;Color : Silver Tone Current : 0.5A;Voltage : 100V Action Distance : 45~60mm;Power Rating : 10W Pipe thread Length : 44cm/17";Size : 10.5x3.8x1cm/4"x1.5"x 0.4"(L*W*H) Weight : 133g;Package Content : 1 xDoorMagneticSwitch 4 x Screw