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Home / Computer Hardware, Monitors & Peripherals / Reed Switch Sensor Module Magnetic Control Module Reed Switch Magnetic Switch

Attributes

Brand -
Category Electronic Components / Maker DIY / Computer Hardware, Monitors & Peripherals
Origin -
Operating Voltage 3.3V - 5V DC
Output Signal Digital Switching Output (0 and 1)
Switch Configuration Normally Open (NO)
Contact Rating 0.5A @ 200V DC
Operating Temperature -20°C to 80°C
PCB Dimensions 32mm x 14mm x 5mm
Mounting Hole Size 3mm Diameter
Status Indicator Green LED Output Indicator
Compatibility Arduino, Raspberry Pi, STM32, ESP8266
Package Weight 5 grams

5 reviews

A

Anonymous

Apr 14, 2026

Rating: 4/5

Solid component

Works as expected. The reed switch is encased well. Just wish the jumper wires were a bit longer for my setup.

A

Anonymous

Apr 07, 2026

Rating: 5/5

Easy for beginners

Clear labeling on the pins. VCC, GND, and OUT. No confusion. Highly recommend for starters learning about sensors.

A

Anonymous

Mar 17, 2026

Rating: 5/5

Great for Arduino Projects

Works perfectly with my Arduino Uno. Very sensitive to the included magnet. Easy to wire up with clear pin labels.

A

Anonymous

Mar 12, 2026

Rating: 4/5

Good value for money

Bought these for a DIY home security system. They work well, though the magnet needs to be quite close to trigger reliably.

A

Anonymous

Feb 08, 2026

Rating: 5/5

Reliable Sensor

I have used these in several robotics projects. The LED indicator is helpful for debugging circuit connections.

5 FAQ

Q: What is the maximum current this can handle?

A: The reed switch is rated for 0.5A. Please do not exceed this limit to avoid damage to the contacts.

Q: Does this work with 3.3V logic boards?

A: Yes, it operates comfortably between 3.3V and 5V DC, making it compatible with most microcontrollers.

Q: Is this normally open or normally closed?

A: This module features a Normally Open (NO) reed switch configuration by default.

Q: Is this module waterproof for outdoor use?

A: No, this is designed for indoor or enclosed electronic projects. It is not waterproof.

Q: Is the magnet included in the package?

A: Yes, each module comes with a matching magnet for testing and immediate use.

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