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Magnetic Sensors

Magnetic Sensors

The Magnetic Sensor is a device that detects changes in magnetic flux density. Such change in magnetic properties is utilized in security devices such as reed switches. We offer a wide selection of mighty earth magnets and recessed magnetic switches to help you secure your perimeter.

  • Press Fit Reed Switch, 3/8" Recessed w/ Cable Leads and Nickel Plated Magnets
    from $45.20

    Rare Earth Mighty Mag Series Switch Sets - N2020 Series - 10 Pack

    N2020-12-W
    GRI

    These products are all Made to Order Which means they are non-cancelable and non-refundable Description Rare Earth Mighty Mag Series Switch Se...

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    from $45.20
  • Press Fit Reed Switch, 3/4" Recessed w/ Cable Leads and Nickel Plated Magnets
    from $52.00

    Rare Earth Mighty Mag Series Switch Sets - N120T Series - 10 Pack

    N120T-12
    GRI

    These products are all Made to Order Which means they are non-cancelable and non-refundable Description Rare Earth Mighty Mag Series Switch Se...

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    from $52.00
  • Miniature Overhead Door Switch Set - 4532/4532L Series
    from $24.64

    Miniature Overhead Door Switch Set - 4532/4532L Series

    4532L
    GRI

    These products are all Made to Order Which means they are non-cancelable and non-refundable Description Miniature Overhead Door Switch Set - 4...

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    from $24.64
  • Box Tamper Switch With 12" Wire Leads
    from $97.00

    Box Tamper Switch - TS-01 Series - 10 Pack

    TSW-01
    GRI

    These products are all Made to Order Which means they are non-cancelable and non-refundable Description Box Tamper Switch With 12" Wire Leads ...

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    from $97.00
  • Industrial Surface Mount Switch Set - 4400 Series
    from $39.04

    Industrial Surface Mount Switch Set - 4400 Series

    4400-A
    GRI

    Description Industrial Surface Mount Switch Set - 4400 Series This series is a heavy duty surface mounted industrial grade contact. A weather resis...

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    from $39.04
  • Reed Switch Set, Micro Surface Mount w/ Self-Stick Adhesive & Center Leads
    from $52.20

    Micro Surface Mount Switch Set - 500 Series - 10 Pack

    502-B
    GRI

    These products are all Made to Order Which means they are non-cancelable and non-refundable Description Micro Surface Mount Switch Set - 10 Pac...

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    from $52.20
  • Capped Miniature Surface Mount Switch Set - 700 Series - 10 Pack
    from $68.00

    Capped Miniature Surface Mount Switch Set - 700 Series - 10 Pack

    700CL-12
    GRI

    These products are all Made to Order Which means they are non-cancelable and non-refundable Description Capped Miniature Surface Mount Switch ...

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    from $68.00
  • Recessed 3/8in Flanged Switch Set - 20F/20 OF Series - 10 Pack
    from $45.20

    Recessed 3/8in Flanged Switch Set - 20F/20 OF Series - 10 Pack

    20F-12
    GRI

    These products are all Made to Order Which means they are non-cancelable and non-refundable Description Recessed 3/8” Flanged Switch Set - 10 ...

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    from $45.20
  • Recessed 3/8" Switch Set Magnetic Contact, 1" Plus Standard Gap, 12" leads, White
    $424.00

    Rare Earth Mighty Mag Series Switch Sets - N5065 Series - 100 Pack

    N5065
    GRI

    These products are all Made to Order Which means they are non-cancelable and non-refundable Description Rare Earth Mighty Mag Series Switch Se...

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    $424.00
  • Recessed 1/2in Short Switch Sets - 150RS Series - 10 Pack
    from $58.20

    Recessed 1/2in Short Switch Sets - 150RS Series - 10 Pack

    150RS-12
    GRI

    These products are all Made to Order Which means they are non-cancelable and non-refundable Description Recessed 1/2” Short Switch Sets - 150R...

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    from $58.20
  • Mighty Mag Rare Earth Magnets (Round) - 10 Pack
    from $11.00

    Mighty Mag Rare Earth Magnets (Round) - 10 Pack

    MM-375
    GRI

    These products are all Made to Order Which means they are non-cancelable and non-refundable Description Rare Earth Magnets (Mighty Mag) - 10 P...

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    from $11.00
  • Industrial Overhead Aluminum Door Switch Set
    from $39.26

    Industrial Overhead Aluminum Door Switch Set - 200/250 Series

    210-36
    GRI

    These products are all Made to Order Which means they are non-cancelable and non-refundable Description Industrial Overhead Aluminum Door Swit...

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    from $39.26
  • Door Monitor
    from $127.46

    Door Monitor

    290-1
    GRI

    These products are all Made to Order Which means they are non-cancelable and non-refundable Description Door Monitor The Door Monitors have be...

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    from $127.46
  • Door Alert Annunciator
    $105.88

    Door Alert Annunciator

    DA-1
    GRI

    These products are all Made to Order Which means they are non-cancelable and non-refundable Description Door Alert Annunciator The Door Alert ...

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    $105.88
  • Alnico V Bare Magnet 1/4™
    from $104.00

    Alnico V Bare Magnets - 100 Pack

    M-12
    GRI

    These products are all Made to Order Which means they are non-cancelable and non-refundable Description Alnico V Bare Magnets - 100 Pack Choose ...

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    from $104.00
  • Reed Switch Set, Super Miniature Recessed with 1/2™ Wide Gap, 12" Leads
    $94.40

    Reed Switch Set, Super Miniature Recessed with 1/2" Wide Gap, 12" Leads - Open Loop - 10 Pack

    NPNB-60RS-12WG
    GRI

    Super Miniature Recessed Reed Switch Set, 1/2" Wide Gap, Open Loop The Super Mini Recessed Switch series includes 1/4" diameter switches with reces...

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    $94.40
  • Press Fit Reed Switch Adjustable Screw Plunger/Push Button Switch, Closed Loop, 3/8" w/ Screw Terminals - 10 Pack
    $61.80

    Press Fit Reed Switch Adjustable Screw Plunger/Push Button Switch, Closed Loop, 3/8" w/ Screw Terminals - 10 Pack

    PB-2020-T-W
    GRI

    These products are all Made to Order Which means they are non-cancelable and non-refundable Description Press Fit Reed Switch Adjustable Scr...

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    $61.80
  • Push Button Plunger Switch, Open Loop, 9/16" Press Fit w/ Screw Terminals - 10 Pack
    $81.20

    Push Button Plunger Switch, Open Loop, 9/16" Press Fit w/ Screw Terminals - 10 Pack

    PB-101T
    GRI

    These products are all Made to Order Which means they are non-cancelable and non-refundable Description Push Button Plunger Switch, Open Loo...

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    $81.20
  • Standard Surface Mount Switch Sets - 29P Series - 10 Pack
    from $68.60

    Standard Surface Mount Switch Sets - 29P Series - 10 Pack

    29PA-72
    GRI

    These products are all Made to Order Which means they are non-cancelable and non-refundable Description Standard Surface Mount Switch Sets - 2...

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    from $68.60
  • Tamper Proof Miniature Surface Mount Switch Set w/ Concealed Terminals
    from $73.40

    Miniature Surface Mount Switch Set - 129 Series - 10 Pack

    129A-W
    GRI

    These products are all Made to Order Which means they are non-cancelable and non-refundable Description Miniature Surface Mount Switch Set - 1...

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    from $73.40
  • Press Fit Reed Switch, 3/8" Ribbed Recessed w/ Leads and Nickel Magnets
    from $50.00

    Rare Earth Mighty Mag Series Switch Sets - N2120 Series - 10 Pack

    N2120-12
    GRI

    These products are all Made to Order Which means they are non-cancelable and non-refundable Description Rare Earth Mighty Mag Series Switch Se...

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    from $50.00
  • Press Fit Reed Switch, 1/2" Recessed w/ Cable Leads and Nickel Plated Magnets
    from $56.80

    Rare Earth Mighty Mag Series Switch Sets - N150 Series - 10 Pack

    N150-12
    GRI

    These products are all Made to Order Which means they are non-cancelable and non-refundable Description Rare Earth Mighty Mag Series Switch Se...

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    from $56.80
  • Magnasphere 3/8in Recessed Flanged Switch Set - MS20F/MS20-OF Series - 10 Pack
    from $202.60

    Magnasphere 3/8in Recessed Flanged Switch Set - MS20F/MS20-OF Series - 10 Pack

    MS20F-12-W
    GRI

    These products are all Made to Order Which means they are non-cancelable and non-refundable Description Magnasphere 3/8” Recessed Flanged Swit...

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    from $202.60
  • Reed Switch Set, 1/2" Recessed Magnetic Switch w/ Cable Leads, SPDT Open/Closed - 10 Pack
    from $99.40

    Reed Switch Set, 1/2" Recessed Magnetic Switch w/ Cable Leads, SPDT Open/Closed - 10 Pack

    170-12-W
    GRI

    These products are all Made to Order Which means they are non-cancelable and non-refundable Description SPDT Open/Closed, 1/2" Recessed Magne...

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    from $99.40
  • Rare Earth Magnets + Closed Loop Reed Switch, 1/2" Recessed w/ Screw Terminals
    from $58.40

    Rare Earth Magnets + Closed Loop Reed Switch, 1/2" Recessed w/ Screw Terminals - 10 Pack

    N150-T
    GRI

    Description Rare Earth Magnets + Closed Loop Reed Switch, 1/2" Recessed w/ Screw Terminals - 10 Pack (White) This recessed "normal closed" style m...

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    from $58.40
  • Press Fit Reed Switch 1/4"
    from $45.20

    Rare Earth Mighty Mag Series Switch Sets - N50RF Series - 10 Pack

    N50RF-12
    GRI

    These products are all Made to Order Which means they are non-cancelable and non-refundable Description Rare Earth Mighty Mag Series Switch Se...

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    from $45.20
  • Miniature 1/4" Flanged Recessed Switch
    from $28.60

    Switch (Only), Miniature 1/4" Recessed w/ Standard 12" Leads - 10 Pack

    S50RF-12-W
    GRI

    These products are all Made to Order Which means they are non-cancelable and non-refundable Description Switch (Only), Miniature 1/4" Recessed...

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    from $28.60
  • Recessed 3/8" Switch Set Magnetic Contact, 1" Plus Standard Gap, 12" leads, White
    $224.00

    Switch (Only), Recessed 3/8" Press Fit 1"+ Gap w/ 12" Leads, Closed Loop - 100/pack

    S5065
    GRI

    These products are all Made to Order Which means they are non-cancelable and non-refundable Description Switch (Only), Recessed 3/8" Press F...

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    $224.00
  • Switch (Only), Surface Mount w/ Covers
    from $32.60

    Switch (Only), Surface Mount w/ Covers And Screw Terminals - Closed Loop - 10 Pack

    S29A
    GRI

    Description Switch (Only), Surface Mount w/ Covers And Screw Terminals - Closed Loop - 10 Pack This versatile series sets the industry standard f...

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    from $32.60
  • Magnasphere 3/8” Recessed Switch Set - MS20RS-12/MS2020-12 Series
    from $221.80

    Magnasphere 3/8in Recessed Switch Set - MS20RS-12/MS2020-12 Series - 10 Pack

    MS20RS-12-W
    GRI

    These products are all Made to Order Which means they are non-cancelable and non-refundable Description Magnasphere Miniature 3/8” Recessed ...

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    from $221.80
  • 120T/4473 Series 3/4" Switch 3/8" Magnet Recessed Switch Sets
    from $31.60

    Switch (Only), Magnetic Recessed 3/4" w/ 12" Leads - Closed Loop - 10 Pack

    S120T-12
    GRI

    These products are all Made to Order Which means they are non-cancelable and non-refundable Description Switch (Only), Magnetic Recessed 3/4" ...

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    from $31.60
  • Switch (Only), Recessed 1/2"
    $55.60

    Switch (Only), Recessed 1/2" Short STUBBY w/ Screw Terminals - Closed Loop - 10 Pack

    S150RS-T
    GRI

    Switch (Only), Recessed 1/2" Short STUBBY w/ Screw Terminals - Closed Loop - 10 Pack (White) This recessed "normal closed" style magnetic reed swit...

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    $55.60
  • Switch (Only), Recessed 3/8" Press Fit w/ 12" Leads
    from $26.40

    Switch (Only), Recessed 3/8" Press Fit w/ 12" Leads - Closed Loop - 10 Pack

    S2020-12
    GRI

    These products are all Made to Order Which means they are non-cancelable and non-refundable Description Switch (Only), Recessed 3/8" Press F...

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    from $26.40
  • Switch (Only), Recessed 1/2" Switch
    $40.80

    Switch (Only), Recessed 1/2" Switch w/ 12" Leads - Closed Loop - 10 Pack

    S150-12-W
    GRI

    These products are all Made to Order Which means they are non-cancelable and non-refundable Description Switch (Only), Recessed 1/2" Switch w/...

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    $40.80
  • Miniature Flanged Surface Mount Switch Set - 1" Gap - 200V/140V
    from $31.60

    Switch (Only), Miniature Surface Mounted, Flanged - Closed Loop - 10 Pack

    S100-12
    GRI

    These products are all Made to Order Which means they are non-cancelable and non-refundable Description Switch (Only), Miniature Surface Moun...

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    from $31.60
  • Alarmed Window Bar
    $49.48

    Alarmed Window Bar - Fits Windows 30" - 42"

    WB-30-42
    GRI

    These products are all Made to Order Which means they are non-cancelable and non-refundable Description Alarmed Window Bar (Fits Windows 30"-4...

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    $49.48