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Mini Magnetic Reed Module (2 Pcs)

Mini Magnetic Reed Module (2 Pcs)

Pimoroni

£5

Price read from Pimoroni on 2026-10-22. Check before buying.

A Reed contact switch is a normally open contact which closes in the presence of a magnetic field. Each module contains a 10 Kohm pull-up resistor. Specifications voltage: 5 VDC connection: 3 pins, +(middle pin), ground and DO (data out) dimensions: 25 x 15 mm weight: 2 g User manual

Pimoroni's own words, read from their page.

Buy from PimoroniOut of stock. Price seen 2026-10-22. Not an affiliate link, we earn nothing from it.

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The part other shops don't tell you. Three separate questions, kept separate on purpose, each with its source.