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Ten white rectangular magnetic reed switches with side-mounted wires and mounting screws

Unique-Bargains

Unique-Bargains 10 Sets NO Magnetic Door Contact Reed Switch 15-25mm

SKU CH-KG49-G4RV4

Ten sets of normally-open magnetic reed switches trigger when a magnet comes within 15-25 mm, each with a 27 cm wire lead and mounting screws included

  • Product typeHome Automation - Sensor & Accessories
  • Ten sets provide multiple entry-point coverage
  • Normally open reed switch closes circuit when magnet approaches
  • 15-25mm action distance suits standard door gaps
  • 27cm wire leads allow flexible routing
  • 64 x 13 x 13mm white ABS housing mounts with 4mm holes

Magnetic door contact reed switch kit

This kit supplies ten normally-open magnetic reed switches designed for door or window monitoring in home-automation systems. Each switch features a white ABS housing with side-mounted wire leads and includes forty mounting screws for installation.

Suited for simple wired security loops

The normally-open operation closes the circuit only when a magnet comes within 15 to 25 millimetres, making it appropriate for basic alarm or automation circuits that require a dry contact. Installers needing normally-closed behaviour or wireless connectivity should consider other sensor types.

Consistent operation under continuous monitoring

Rated for 10 watts at 100 volts DC, the contacts maintain their 15 to 25 millimetre actuation distance during sustained use without drift. The 27 centimetre wire leads on each unit simplify routing to a central controller while the screw-mount design resists vibration over long periods.

How it compares

Measured against everything we stock in Sensors, Buzzers & Control Modules, at today’s prices. Recalculated every night.

Price $11.99
Cheaper than about 83% of the 89 comparable items (median $29.99).

Specifications

Product
Brand nameUnique Bargains
Product typeHome Automation - Sensor & Accessories

Questions about this item

What voltage and current source do I need to power these 10 reed switch sets?

Each switch is rated for DC 100 V and 10 W, so your control circuit must stay within those limits.

Will the 15-25 mm action distance still trigger reliably if I keep my existing door frame and magnet spacing?

The contact closes when the magnet comes within 15-25 mm, so measure your current gap; if it falls in that range the switch will operate.

How can I verify each of the 10 sets is working after I mount them with the 4 mm screws?

With the magnet away the circuit is open; bring the magnet within 15-25 mm and the circuit should close, confirming correct operation.

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