Uhppote
Wired Shutter Roller Magnetic Overhead Door Contact Output Nc/no With Bracket Home Improvement
- Brand: uhppote
- In Stock
- 24 Sold / 55 In Stock
17.50
Make sure this fitsby entering your model number. This Contact Works with Any Access Control or Burglar Alarm System Available Switch Type: NC / NO Great for use in family and factory window, door. etc. 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)
