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dh-38 door contact, nc no wired magnetic sensor, alarm door contact switch, wired door window sensor, access control magnetic contact, magnetic reed switch door sensor
dh-38 door contact, nc no wired magnetic sensor, alarm door contact switch, wired door window sensor, access control magnetic contact, magnetic reed switch door sensor

DH-38 Door Contact – NC / NO Wired Magnetic Sensor

SKU: DH-38NC/NO

  • Key Features

    • Available in NC & NO Versions: Choose Normally Closed or Normally Open based on your alarm wiring requirements.

    • Magnetic Reed Switch Detection: Accurate open/close sensing for doors, cabinets, shutters, etc.

    • Stable Wired Communication: Prevents wireless interference for critical security applications.

    • Durable ABS Casing: Moisture-resistant housing ensures long-term reliability.

    • Compact Surface / Flush Mount: Discreet design blends with door frames.

    • Compatible With Alarm & Access Systems: Works with panels, controllers, relays, and automation modules.

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₨399.00 – ₨450.00Price range: ₨399.00 through ₨450.00
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Description

  • The DH-38 Magnetic Door Contact is a wired security sensor designed for professional alarm and access control systems. Available in both NC (Normally Closed) and NO (Normally Open) versions, the DH-38 offers flexibility for different system requirements.

    In NC mode, the circuit remains closed when the door is shut and opens when the door is opened.
    In NO mode, the circuit remains open when the door is shut and closes when the door is opened.

    This compatibility makes the DH-38 suitable for alarm panels, magnetic locks, relay triggers, control boards, CCTV alarm inputs, and automation systems.

    Built with durable components and a strong magnetic design, the DH-38 provides stable, interference-free detection for residential, commercial, and industrial installations. It’s ideal for secure monitoring of entry doors, metal cabinets, storage rooms, sliding doors, and shutters.

Technical Specifications

  • Model: DH-38

  • Variants: NC (Normally Closed), NO (Normally Open)

  • Sensor Type: Magnetic reed switch

  • Wiring: Hard-wired terminal contacts

  • Mounting: Surface / flush mount design

  • Material: ABS housing

  • Applications: Doors, windows, cabinets, access control

  • Compatible Systems: Alarm panels, access controllers, relays, automation systems

FAQs

Q: What is the difference between NC and NO?
A: NC stays closed when the door is shut. NO stays open until the door is triggered.

Q: Can this work with access control systems?
A: Yes, DH-38 supports wired connections for panels and controllers.

Q: Can this be installed on metal doors?
A: Yes, ensure proper sensor alignment for reliable triggering.

Q: Is wiring required?
A: Yes, DH-38 is a wired contact sensor for secure and stable detection.

Applications / Use Cases

  • Security alarm systems

  • Access control entry points

  • CCTV alarm integration

  • Smart relay automation

  • Warehouse and shop shutters

  • Office & home entry monitoring

Additional information

Choose

Normally Open(NO), Normally Closed(NC)

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dh-38 door contact, nc no wired magnetic sensor, alarm door contact switch, wired door window sensor, access control magnetic contact, magnetic reed switch door sensor
DH-38 Door Contact – NC / NO Wired Magnetic Sensor Price range: ₨399.00 through ₨450.00
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