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Sensor Type
Door / Window
Contact Closure / Relay
Normal State
Normally Closed
Ease of Installation
Intermediate (Installs < 60 minutes)
United Security
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Micro-Miniature Magnetic Contact Switch Protects Your Doors, Windows, or Other Entry Points
United Security Products 90-SP Micro-Miniature Magnetic Contacts
United Security Products 90-SP Micro-Miniature Magnetic Contacts
United Security Products 90-SP Micro-Miniature Magnetic Contacts
Item# 79674
Price: Normally $5.50 
Hot Deal $2.81
Free shipping on orders over $50 - See Details


  • Micro-miniature size: only 1" x 1/4" x 1/8"
  • Strong magnet allows a 0.6" gap
  • Rhodium contacts assure good conductivity and long life
  • Normally Closed when magnet is next to switch

Essential Info

The United Security Products 90-SP Micro-Miniature Magnetic Contact is a powerful, reliable magnetic contact that easily installs to monitor a door, window, or other opening. This kit contains a sensor and magnet as well as covers and spacers. Rare Earth Magnets and rhodium metal contacts ensure reliability and allow the sensor to work with a gap of up to 0.6 inch. Each switch is welded with a solid brass splice in order to provide the strongest connection possible.


What's Included

  • 1x - 90-SP Micro-Miniature Magnetic Contacts
  • 1x - Instructions

  • Specifications

    ManufacturerUnited Security Products
    Manufacturer Product No.90-SP
    Maximum Gap0.6"
    Lead Length24"
    Dimensions1" x 1/4" x 1/8"

    Important notes:
    Defective exchanges for identical item within 30 days of purchase. After 30 days, please contact the manufacturer.
    Manufacturer contact information: United Security Products Inc / Emer Call, Tel: (858) 413-0149


    5 Ratings
    5 star: 80%  (4)
    4 star: 0%  (0)
    3 star: 0%  (0)
    2 star: 20%  (1)
    1 star: 0%  (0)
    Average Customer Rating
    (5 customer ratings)
    Share your thoughts with other customers
    MARCUS -- monroe, NC   11/28/2013
    They seem to be as advertised. The order was shipped promptly.
    WILLIAM -- smyrna, GA   10/11/2013
    Items as described; fast shipping; fair price.
    DaveB -- orlando, Florida   1/17/2013
    I just received my order. Be warned that these switches are not WHITE as they appear pictured. The actual color is light gray.

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