Specification Brand : JESSINIE BulletPoint1 : 1. Product Name: Magnetic Door Switch; Model: MC-33C BulletPoint2 : 2.Contact Type: NC (Normally Closed) BulletPoint3 : 3.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 ) BulletPoint4 : 4.Work as an anti-theft alarm, ideal for metal door and window BulletPoint5 : 5.These are the door contact sensors that are in use with any and all commercial or residential card access systems as well as all security burglar alarm system BulletPoint6 : A simple on-off rocker switch. This type can be used to switch the power supply to a circuit. BulletPoint7 : It can be applied as the switches for the additional electronical equipment inside & outside the car. BulletPoint8 : the switch will sit in nicely; no more square cut outs. BulletPoint9 : anti corrosion, , alkali and heat resistant, Terminals are silver plated brass, brand new and long lifetime. Color : Silver, Black ConnectivityProtocol : X-10 ConnectorType : Screw ControllerType : Insteon ControlMethod : touch CurrentRating : 0.5 amps CustomerPackageType : Standard Packaging Department : Unisex Adult ExternallyAssignedProductIdentifier : 6974585961084 ExternallyAssignedProductIdentifier1 : 752771988437 ExternallyAssignedProductIdentifier2 : 0752771988437 IncludedComponents : ABS InternationalProtectionRating : 100 volt ItemName : GDQLCNXB 2 Sets MC-33C Normally Closed Recessed Window Door Contact Sensor Alarm Magnetic Reed Switch ItemPackageDimensions_Height : 8.6 centimeters ItemPackageDimensions_Length : 0.9 centimeters ItemPackageDimensions_Width : 5.7 centimeters ItemPackageQuantity : 1 ItemTypeKeyword : reed-switches Manufacturer : GDQLCNXB Material : Metal ModelName : Magnetic Reed Switch ModelNumber : 20217301602 MountingType : Door NumberOfItems : 2 NumberOfPositions : 3 OperatingVoltage : 100 volts OperationMode : Off PartNumber : 20217301602 ProductDescription : Features: 1.Designed for use with alarm systems. 2.Great for use in family and factory window, door. etc. Package Included: 2 Sets x Normally Closed Recessed Window Door Contact Sensors ProductSiteLaunchDate : 2021-07-30T08:15:13.463Z Size : MC-56 NC/NO SupplierDeclaredDgHzRegulation : not_applicable SwitchType : Magnetic Switch SwitchType1 : Limit Switch SwitchType2 : Temperature Switch TerminalType : Screw UnitCount : 2 UnspscCode : 39122200 Wattage : 60 watts