5pcs Recessed NC Security Alarm Door Window Contact Sensor Magnetic Reed Switch Lamp Guards Provide solderless gapless connection for

Provide solderless gapless connection for both waterproof and non-waterproof LED strip lights

Hex Size: 15 x 29mm / 0

Self-adhesive number stickers are efficient to target and identify anything you need to mark

Package Content : 10pcs x Barb Hose Fitting

4 x Corner Bracket

5pcs Recessed NC Security Alarm Door Window Contact Sensor Magnetic Reed Switch Lamp Guards Provide solderless gapless connection forNC means Normally Closed: When the magnet together, the circuit is conductive( light on ); when the magnet separate, the circuit is not conductive ( light off ). When make order,pls check carefully! The reed switch is an electrical switch operated by an applied magnetic field. Designed for use with alarm systems. Great for use in family and factory window, door. etc.