4 Sets Magnetic Reed Switch MC-31 Door Window Magnetic Switch Alarm Magnetic Reed Switch Security Normally Open Closed NC NO Door Sensor

【Producat Name】 : Normally open normally closed magnetic door switch； Material : PVC 【Switch Type】: NO means normally open: when the magnet separate, the circuit is conductive( light on )

when the magnet together, the circuit is not conductive ( light off ), NC means normally closed: when the magnet together, the circuit is conductive( light on )

when the magnet separate, the circuit is not conductive ( light off ). 【Function】: The reed switch is an electrical switch operated by an applied magnetic field. Designed for use with alarm systems. This Recessed Door Contact Sensor works with any access control or burglar alarm system available 【Size】-Sensing distance：20mm Total Size:64mm x 13mm/2.52" x 0.51" (L x W) 【Package Included】: 4 Sets x MC-31 Magnetic Reed Switch.

Brand: ‎Sopepoyie Color: ‎White Power Source: ‎Corded Electric Compatible Devices: ‎Personal Computer, Smartphone, Tablet Item dimensions L x W x H: ‎2.52 x 0.51 x 0.43 inches Connectivity Technology: ‎Wired Installation Type: ‎Surface Mount,Wall Mount Alert Type: ‎Motion Item Weight: ‎1.6 ounces Control Method: ‎App, Remote Included Components: ‎screw Unit Count: ‎4.0 Count UPC: ‎742004388950 Manufacturer: ‎Sopepoyie Part Number: ‎MC-31B Product Dimensions: ‎2.52 x 0.51 x 0.43 inches Item model number: ‎MC-31B Material: ‎pvc Mounting Type: ‎Surface Mount Batteries Included?: ‎No Batteries Required?: ‎No ASIN: B0BFN14WSW Customer Reviews: 4.1 out of 5 stars Date First Available: September 18, 2022