Authorized Seco-Larm Reseller

Seco-Larm SM-4004-LQ/W Capsule-Type Surface-Mount Magnetic Contact – White, 3/4″ (19mm) Gap, Closed loop, Pack of 10

Seco-LarmSKU: SM-4004-LQ/W

Sale price$27.00
Usually ships within 3-5 business days
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Call Us: 718-435-2800


  • Miniature capsule-type surface-mount magnetic contacts
  • 18″ (46cm) Wire leads from center
  •  Adhesive mounting (double-sided tape included)
  • Contact reed switch is SPST, ruthenium on gold underplating for a longer expected life
  • For closed loop circuits
  • 3/4″ (19mm) Gap
  • Lifetime limited warranty
  • Pack of 10



Loop Type Closed Loop
Electrical Configuration N/O
Operation Gap 3/4″ (19mm)
Terminals 18″ wire leads
Color White
Material High-impact ABS plastic
Contacts Ruthenium on gold underplating
Contact Rating 1.0A@10VDC (max), 10W (max)
Operating Temperature -15°~160°F (-25°~70°C)
Switch Cycles 50 Million (0.1mA@5VDC)
Switch Dimensions 1″ x 3/8″ x 1/4″ (25 x 10 x 7 mm)
Magnet Dimensions 1″ x 3/8″ x 1/4″ (25 x 10 x 7 mm)
Magnet Type Rare-earth neodymium

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