• 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
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.
Product Type: Magnetic Door Contact Sensor
Model: DH-56
Contact Type: NC (Normally Closed) / NO (Optional)
Operating Voltage: Up to 100V DC
Max Switching Current: 0.5A
Max Power Load: 10W
Detection Gap: Up to 40 mm
Material: Zinc Alloy Metal Housing
Connection Type: Wired
Installation Type: Surface Mount
Color: Grey / Metal
Application: Alarm & Security Systems
Rolling Shutter Doors
Industrial Gates
Warehouse Doors
Garage Doors
Commercial Buildings
Factory Entrances
Shop Shutters
Security Alarm Installations
Q1: What type of doors is DH-56 used for?
It is ideal for metal doors, rolling shutters, and industrial gates.
Q2: What is the detection distance?
The operating gap can reach up to 40 mm depending on installation.
Q3: Is it compatible with alarm panels?
Yes, it works with most wired security alarm systems.
Q4: Why does it have a metal body?
The zinc alloy housing increases durability for industrial environments.
Q5: Can it be used outdoors?
Yes, it can be used in indoor or protected outdoor installations.
| TYPE | NC, NO |
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