HiLetgo 12V 1 Channel Relay Module With Optocoupler Isolation Support High or Low Level Trigger

2Sets Magnetic Reed Switch Normally Open Closed NC NO Door Alarm Window Security/Magnetic Door Switch/Magnetic Contact Switch/Reed Switch for GPS,Alarm or Other Device,DC 5V 12V 24V Light

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â˜… Switch Type: NO/NC, circuit is connected when magnet is near the switch.

â˜… The reed switch is an electrical switch operated by an applied magnetic field.

Designed for use with alarm systems.

â˜… Great for use in family and factory window, door. etc.

â˜… Screw Mounted for easily install.

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HiLetgo 12V 1 Channel Relay Module With Optocoupler Isolation Support High or Low Level Trigger

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2Sets Magnetic Reed Switch Normally Open Closed NC NO Door Alarm Window Security/Magnetic Door Switch/Magnetic Contact Switch/Reed Switch for GPS,Alarm or Other Device,DC 5V 12V 24V Light

Product Review