High Voltage Magnetic Reed Switchs,NO NC Normally Open and Normally Closed Magnetic Door Switch,AC127V 30W 1A Proximity Switch for

Cable Definition Black for common Yellow for NO Red for NC

NCNO Contact TypeNCNO Combined,Normally Closed Open,using Normally Open or Normally Closed freely.Please look at the working mode in the Third picture to see if it is the switch you need.

Package 2 sets of black magnetic door contact reed switches + 4 pieces stickers + 8 pieces screws Product Size 2997mm L W HMounting Hole Size6mm

Application Magnetic door contact reed switch ideal for door alarm sensors, alarms, LED switches, relays, GPS low voltage devices, etc., effective for theft deterrent. Ideal for wooden doors or windows security