ITEM NAME:Metal Door Alarm Magnetic Contact Switch Roller Shutter Store Security Safety FT Description Features: 1.Brand new and high quality 2.Special use for metal doors, anti-magnetic interference design. 3.Simple and convenient for installation 4.The metals electroplates outer shell, double-loop circuit design, performance stable. 5.Circuit is connected when magnet is near the switch. 6.Suitable for iron door installation Specifications: 1.Switch Type:NC(normal close type) 2.Rated Currentï ¼Å¡0.5A 3.Rated Voltage:100V DC 4.Rated Power:10W 5.Operating Distance:35mm+-10mm 6.Cable Length 260mm 7.Size(Approx) :49 x 19 x 9.5mm (L*W*H) 8.Color:Silver 9.Housing Material:Metal Package Included: 1 x Door Magnetic Switch 4 x Screws.Circuit is connected when magnet is near the switch. 1 x Door Magnetic Switch. Suitable for iron door installation. Switch Type:NC(normal close type). Cable Length 260mm. Size(Approx) :49 x 19 x 9.5mm (L W H).