NavKar Systems
SH-3WD NO & NC 3 Wires Magnetic Garage Door Contacts Heavy Duty Alarm Switch Sensor for Roller Shutter
SH-3WD NO & NC 3 Wires Magnetic Garage Door Contacts Heavy Duty Alarm Switch Sensor for Roller Shutter
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Rs. 854
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Rs. 854
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Amazon price checked 28 Oct 2026; Amazon prices change often. All our prices include GST, with the same warranty and free support.
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- 3 wires NO&NC, both with normally open and normally closed type for you choosing
- Over 40mm large operation distance , suitable for most garage door, roller shutter, gate
- Heavy duty high strength metal housing
- For home burglar alarm system, important kits of home security
- 15" stainless steel armoured cable, for good wires protection
Frequently asked questions
Is this sensor wired or wireless?
It is wired, with 3 wires for NO and NC connection.
What is the gap distance?
It works with a gap of over 40 mm, which suits most garage doors, roller shutters and gates.
How is the cable protected?
It has a 15 inch stainless steel armoured cable and a heavy duty metal housing.
