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Three white cylindrical magnetic reed switches with side wires and mounting screws

Unique-Bargains

Unique-Bargains 3 Sets NO Recessed Magnetic Reed Switch Control Sensor

SKU CH-0QNQ-F15WS

Three normally-open magnetic reed switches for recessed door or window mounting, 15–25 mm gap, 27 cm wire leads, white ABS housing, twelve installation screws included

  • Product typeHome Automation - Sensor & Accessories
  • Normally-open circuit closes when magnet approaches
  • 15-25 mm sensing gap covers typical door clearances
  • Recessed 4 mm mounting hole for flush installation
  • 27 cm side-exit wire simplifies routing
  • White ABS housing resists yellowing indoors

Magnetic Reed Switch Kit

This pack contains three normally-open magnetic contact sensors for recessed door or window mounting. Each switch closes its circuit when a magnet comes within the 15 to 25 mm gap. White ABS housings measure 64 by 13 by 13 mm and include a 27 cm side-mounted wire lead. Twelve mounting screws are supplied for installation.

Installers Wiring Simple Perimeter Zones

The sensors suit basic alarm loops or home-automation inputs that accept a dry contact rated at 10 W and 100 V DC. Builders who need change-over or normally-closed contacts, wireless transmission, or tamper detection should look at other devices. The fixed 27 cm lead may also limit placement on wider frames.

Normally-Open Switch With 15 to 25 mm Gap

The single specification that decides fit is the normally-open reed switch that activates only when a magnet enters the 15 to 25 mm sensing distance. If your controller requires a normally-closed circuit or a wider gap, this kit will not work.

How it compares

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

Price $6.99
Cheaper than about 90% of the 89 comparable items (median $29.99).

Specifications

Product
Brand nameUnique Bargains
Product typeHome Automation - Sensor & Accessories

Questions about this item

What is the maximum DC voltage the reed switch can handle continuously?

The switch is rated for DC 100V and 10W, so sustained operation should stay within those limits.

How much heat or noise does the sensor produce during all-day operation?

As a passive magnetic reed switch it draws no power and generates no audible noise or measurable heat while monitoring.

What must already be installed for these recessed contacts to function?

A compatible alarm or automation panel with wired zone inputs is required; the sensors only provide a dry normally-open contact closure.

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