3Pcs NO/NC Door Window Contact Magnetic Reed Switch Alarm Security 15-20mm Furry Microphone Windscreen Total Size: 68mm x 38mm

Total Size: 68mm x 38mm / 2

The roller plunger can be operated in a wide range by employing a cam

classification of packaging applications in various industries

20 x Furniture Pads

This is the perfect bearing for all your skateboard applications

3Pcs NO/NC Door Window Contact Magnetic Reed Switch Alarm Security 15-20mm Furry Microphone Windscreen Total Size: 68mm x 38mmNO NC type designed for use with alarm systems. Great for use in family and factory window, door. etc. 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 ). When make order,pls check carefully!