NO&NC 3 Wires Magnetic Garage Door Contacts Heavy Duty Alarm Switch Sensor for Roller Shutter with Adjustable Bracket
$19.99
NO&NC 3 Wires Magnetic Storage Door Contacts Heavy Responsibility Alarm Change Sensor With Adjustable Bracket For Curler Shutter.
Storage door contacts is extensively used for house alarm programs , to detect the storage door/ curler shutter states of open or shut .
Operation hole : over 40mm
Mounting kind : Curler shutter door
Contact kind : NO&NC
Max. voltage : 28V DC
Max. present : 0.2A
Max. load : 3W
Materials : Matel zinc alloy
3 wires NO&NC, each with usually open and usually closed kind for you selecting
Over 40mm giant operation distance , appropriate for many storage door, curler shutter, gate
L adjustable bracket included, for magnet straightforward mounting
Heavy obligation excessive energy steel housing
For house burglar alarm system, necessary kits of house safety
15″ chrome steel armoured cable, for good wires safety
