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China hotel keycard lock factory,Guangdong hotel keycard lock factoryChina hotel keycard lock factory,Guangdong hotel keycard lock factory

China hotel keycard lock factory,Guangdong hotel keycard lock factory

  • Specification:
  • * Dimension: 55*12*11  mm
  • * Housing: ABS ,white
  • * Gap: 15-25mm/20-25 mm available
  • * Output: change over/N.C. & N.O.  available
  • * Inner packing: 10sets/PE            
  • * Outer packing: 900 sets/carton
  • * Gross Weight: 12.0KG
  • * Remarks: 4 screws including


   
  

Surface mounted magnetic switch door contact

This sensor is essentially a reed switch, encased in an ABS plastic shell. Normally the reed is 'open' (no connection between the two wires). The other half is a magnet.  They're often used to detect when a door or drawer is open, which is why they have mounting tabs and screws. You can also pick up some double-sided foam tape from a hardware store to mount these, that works well without needing screws.



Others,
We offer:
1.cheap door sensor
2.best quality magnetic switch
3.alarm system accessories 
4.security door control with fast deliver
Shenzhen Proyu Technology Co. Ltd

Tel:+86-13725558729

Contact Person:Sunny Xiong

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