Wired Rolling Magnetic Contact Surface Mount Security Alarm for Roller Shutter Gate Door SAL-8151

Product Features: : Work as an anti-theft alarm, ideal for house, garage, warehouse, enterprise and shop etc. Sharp alarm will be heard when someone opens door or window in arming status Need to connect with host to make alarm (Host is not included) Sharp alarm when the door/window is opened or shocked Adopt energy-saving circuit Touch Spot Mode: Normal open/normal close Main Material: Alloy plating shell/ Stainless Steel pipe thread/ Reed switch Current: 0.5A Voltage: 100V Power Rating: 10W Contact Resistance: less than 200 ohm Switch form: N.O or N.C Action distance: 40-60mm Size: 105 x 38 x 11mm (L x W x H) Pipe thread Length: 36cm Weight: 150g Color: Silver Product Specifications:: Package Contents:: 1 x Metal Magnet 1 x Steel Ring 4 x Screws