Dear customers,

EXP Tech will be closed from 14.12.2020 to 04.01.2021 for the Christmas Holidays. Last shipping day in 2020 is 11.12.2020. Please plan ahead.

Merry Chrsitmas and happy new year!

Yours sincerely

Your EXP-Tech team


Magnetic contact switch (door sensor)

Magnetic contact switch (door sensor)
This product is currently not available.
Please inform me as soon as the product is available again.
€5.80 *

Prices incl. VAT plus shipping costs

Delivery time approx. 14 days

  • Adafruit
  • EXP-R15-470
  • 375
  • 0
  • CN
  • 85365011
  • 0.005
This sensor is essentially a reed switch, encased in an ABS plastic shell. Normally the reed is... more

This sensor is essentially a reed switch, encased in an ABS plastic shell. Normally the reed is 'open' (no connection between the two wires). The other half is a magnet. When the magnet is less than 13mm (0.5") away, the reed switch closes. They're often used to detect when a door or drawer is open, which is why they have mounting tabs and screws. You can also pick up some double-sided foam tape from a hardware store to mount these, that works well without needing screws.

Technical Details:
  • Normally open reed switch
  • ABS enclosure
  • Rated current: 100 mA max
  • Rated voltage: 200 VDC max
  • Distance: 15mm max
  • Dimensions:
    • Box size (each side): 27mmx14mmx8.7mm (1inx0.55inx0.34in)
    • Cable Length: 25cm (10in)
    • Weight (per side): 5.2g (0.18oz)
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