DH-56 Metal Door Magnetic Contact – Heavy Duty Security Sensor NC/NO

Heavy-Duty Zinc Alloy Metal Housing
Normally Closed (NC) Magnetic Contact
Wide Detection Gap (Up to 40mm)
Designed for Metal & Industrial Doors
Surface Mount Easy Installation
Compatible with Alarm & Security Systems

Rs.1,199.00

Price includes tax. Delivery calculated at checkout.

Why our price is lower

We import directly and supply the trade from two shops in Karachi and Lahore. There is no middleman between the container and you. Same product, fewer hands.

In stock, ready to ship

Limited stock

1 year service warranty Void if burnt or physically damaged Claim it at either shop, or send it back — we handle the manufacturer for you. Invoice included with every order.

Will this fit my setup?

Check the voltage your existing wiring or adaptor supplies.
Measure the space, door thickness or bracket spacing before ordering.
Confirm it works with the recorder, panel or app you already use.
Still not sure? Send a photo of the old part, the door or the existing setup. We will tell you what fits - usually within minutes during shop hours.

Free delivery on orders over Rs 5,000
2-3 working days to Karachi, Lahore and Islamabad · 3-5 elsewhere
Cash on delivery available nationwide
Order before 4pm for same-day delivery in Karachi and Lahore · prepaid orders only
Save 4% when you pay by card or bank deposit · use code PREPAID4
Free collection from our Karachi or Lahore shop

Genuine product
7-day returns
Secure checkout
Trading since 2005

Not sure this is the right one? Ask us on WhatsApp - we will tell you straight.

Product details

The DH-56 Metal Door Magnetic Contact is a heavy-duty magnetic sensor designed for security alarm systems to detect door or gate opening.

This sensor uses a magnetic reed switch, an electrical switch activated by a magnetic field, commonly used in security systems to detect movement or door position.

The DH-56 model features a strong zinc alloy metal housing, making it suitable for metal doors, rolling shutters, industrial gates, and warehouse entrances where durability is required.

When the door is closed, the magnet keeps the circuit closed. When the door opens and the magnet moves away, the circuit changes state and triggers the alarm panel.

The DH-56 sensor supports both NO and NC output configurations depending on installation requirements and typically provides a wide operating gap of around 40 mm, making it suitable for large doors or shutters.

You can buy this metal door magnetic contact from ZZ Marts, with stores in Karachi and Lahore and delivery across Pakistan.