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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.

  • Miniature Floor Mount Cast Aluminum Overhead Door Switch Set Magnetic Contact, 2 1/2" Gap
    from $20.86

    Miniature Overhead Door Magnetic Floor Mount Switch Set, 2 1/2in Gap

    4532B
    GRI

    These products are all Made to Order Which means they are non-cancelable and non-refundable Description Miniature Overhead Door Floor Mount M...

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    from $20.86
  • Water Sensor With Relay Contact - 2500/2600 Series
    from $27.06

    Water Sensor With Relay Contact - 2500/2600 Series

    2600
    GRI

    These products are all Made to Order Which means they are non-cancelable and non-refundable Description Water Sensor With Relay Contact Undete...

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    from $27.06
  • Reed Switch Set, 3/8"
    from $40.00

    3/8in Recessed Switch Set - 2020-12/2020-T Series - 10 Pack

    2020-12-W
    GRI

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

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    from $40.00
  • Reed Switch Set, Open Loop, 3/4"
    from $76.00

    Reed Switch Set, Open Loop, 3/4" Steel Door Recessed Magnetic Switch w/ Cable Leads - 10 Pack

    185-12-W
    GRI

    These items are Build to Order and Non-Returnable Descriptions Reed Switch Set, Open Loop, Steel Door Recessed 3/4" Magnetic Switch w/ Cable Le...

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    from $76.00
  • Door Channel Magnets - 10 Pack
    $49.20

    Door Channel Magnets - 10 Pack

    MC-180
    GRI

    These products are all Made to Order Which means they are non-cancelable and non-refundable Description Door Channel Magnets - 10 Pack (White...

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    $49.20
  • Push Button/Plunger Switch - PB-100/PBF-100 Series - 10 Pack
    from $63.80

    Push Button/Plunger Switch - PB-100/PBF-100 Series - 10 Pack

    PBF-100-W
    GRI

    These products are all Made to Order Which means they are non-cancelable and non-refundable Description Push Button/Plunger Switch - 10 Pack T...

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    from $63.80
  • Roller Ball Actuated Plunger Switch, Closed Loop, Flanged, Short, w/ Leads
    from $65.80

    Roller Ball Actuated Plunger Switch, Closed Loop, Flanged, Short, w/ Leads - 10 Pack

    DS-01-W
    GRI

    Description Roller Ball Actuated Plunger Switch, Closed Loop, Flanged, Short, w/ Leads - 10 Pack (White) The new Short Roller Ball Switch is a un...

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    from $65.80
  • Miniature 1/4” Recessed Switch Set - 50R Series - 10 Pack
    from $40.60

    Miniature 1/4in Recessed Switch Set - 50R Series - 10 Pack

    50RF-12-W
    GRI

    These products are all Made to Order Which means they are non-cancelable and non-refundable Description Miniature 1/4” Recessed Switch Set -...

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    from $40.60
  • Miniature 3/8" Recessed Switch Set -10 Pack
    from $51.00

    Miniature 3/8" Recessed Switch Set -10 Pack

    20RS-12-AL
    GRI

    These products are all Made to Order Which means they are non-cancelable and non-refundable Description Miniature 3/8" Recessed Switch -10 P...

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    from $51.00
  • Magnasphere Surface Mount Switch Set - MS28/MS29 and MS29P Series - 10 PACK
    from $245.00

    Magnasphere Surface Mount Switch Set - MS28/MS29 and MS29P Series - 10 PACK

    MS28A-G
    GRI

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

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    from $245.00
  • Press Fit Reed Switch 3/8"
    from $47.00

    Recessed 3/8in Ribbed Switch Set - 2120 Series - 10 Pack

    2120-12
    GRI

    These products are all Made to Order Which means they are non-cancelable and non-refundable Description Recessed 3/8” Ribbed Switch Set The 21...

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    from $47.00
  • Rare Earth Magnet Switch Sets
    from $94.80

    Rare Earth Magnet Switch Sets, N Series, Miniature "Shortie" Recessed 3/8in with 12in Leads - Open Loop - 10 Pack

    N30RS-12-W
    GRI

    Description Rare Earth Magnet Switch Sets, N Series, Miniature "Shortie" Recessed 3/8" w/ 12" Leads - Open Loop - 10 Pack (White) Our Mighty Mag c...

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    from $94.80
  • Super Miniature 1/4" Recessed Switch
    from $40.80

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

    S50RS-12
    GRI

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

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    from $40.80
  • Current Controller with Recessed Switch - Automatic AC Voltage Switching System, UL Listed
    $72.62

    Current Controller with Recessed Switch - Automatic AC Voltage Switching System, UL Listed

    CC-01-3030-T
    GRI

    These products are all Made to Order Which means they are non-cancelable and non-refundable   Description Current Controller/Automatic AC Vol...

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    $72.62
  • 120T/4473 Series 3/4" Switch 3/8" Magnet Recessed Switch Sets
    $49.00

    Magnet Recessed Switch Set - 3/4in Switch And 3/8in Magnet - 10 Pack

    4473-G
    GRI

    These products are all Made to Order Which means they are non-cancelable and non-refundable Description Magnet Recessed Switch Set - 3/4" Swit...

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    $49.00
  • Miniature Flanged Surface Mount Switch Set - 1" Gap - 200V/140V
    from $49.20

    Miniature Surface Mounted Switch Sets With Flanges - 100 Series - 10 Pack

    100-12-AL
    GRI

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

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    from $49.20
  • Miniature Surface Mounted Switch Sets Without Flanges - 110 Series - 10 Pack
    from $49.20

    Miniature Surface Mounted Switch Sets Without Flanges - 110 Series - 10 Pack

    110-12-AL
    GRI

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

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    from $49.20
  • 3/8" One Inch Gap Recessed Switch Set - 100 Pack
    $328.00

    3/8" One Inch Gap Recessed Switch Set - 100 Pack

    5065
    GRI

    These products are all Made to Order Which means they are non-cancelable and non-refundable Description 3/8" One Inch Gap Recessed Switch Set ...

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    $328.00
  • Industrial Tamper Proof Surface Mount Switch
    from $254.20

    Industrial Surface Mount DPDT Switch Set 413 Series - 10 Pack

    413P-G
    GRI

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

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    from $254.20
  • Industrial Tamper Proof Surface Mount Switch
    from $135.20

    Industrial Surface Mount Open Loop Switch Set 401/411 Series - 10 Pack

    411P-G
    GRI

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

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    from $135.20
  • Industrial Tamper Proof Surface Mount Switch
    from $163.20

    Industrial Surface Mount SPDT Switch Set 402/412 Series - 10 Pack

    412P-G
    GRI

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

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    from $163.20
  • LED Cabinet LIght
    $69.00

    LED Cabinet LIght

    NPNB-RALED01
    Primus Cable

    Description LED Cabinet Light The LED Cabinet Light is a motion activated high power LED light designed to offer exceptional cabinet visibility ...

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    $69.00
  • High Security Surface Mount Magnetic Switches
    from $262.58

    High Security Surface Mount Magnetic Switches

    GR2707-A
    GRI

    These products are all Made to Order Which means they are non-cancelable and non-refundable Description High Security Mount Magnetic Switches T...

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    from $262.58
  • Reed Switch Set, Miniature 1/4" Recessed w/ Cable Leads - 10 Pack
    from $65.20

    Reed Switch Set, Miniature 1/4" Recessed w/ Cable Leads - 10 Pack

    60RS-12
    GRI

    These products are all Made to Order Which means they are non-cancelable and non-refundable Description Reed Switch Set, Miniature 1/4" Rece...

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    from $65.20
  • 120T/4473 Series 3/4" Switch 3/8" Magnet Recessed Switch Sets
    from $44.86

    Recessed 3/4" Switch 3/8" Magnet Switch Sets - 120T/4473 Series - 10 Pack

    120T-12-W
    GRI

    These products are all Made to Order Which means they are non-cancelable and non-refundable Description Recessed 3/4" Switch 3/8" Magnet Switc...

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    from $44.86
  • Reed Switch Set, Closed Loop, 3/4"
    from Call for Pricing

    Recessed 3/4in and 1in Steel Door Switch Set - 180-12/184-12/8080-T Series - 10 Pack

    180-12
    GRI

    These products are all Made to Order Which means they are non-cancelable and non-refundable Description Recessed 3/4" and 1" Steel Door Switch...

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    from Call for Pricing
  • Recessed 1/2" Switch Set - 150 Series - 10 Pack
    from $51.80

    Recessed 1/2" Switch Set - 150 Series - 10 Pack

    160-12
    GRI

    These products are all Made to Order Which means they are non-cancelable and non-refundable Description Recessed 1/2" Switch Set - 150 Series ...

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    from $51.80
  • Roller Ball Actuated Plunger Switch, Closed Loop, Flanged
    from $68.60

    Roller Ball Plunger Contact - RB Series - 10 Pack

    RB-01-W
    GRI

    These products are all Made to Order Which means they are non-cancelable and non-refundable Description Roller Ball Plunger Contact - 10 Pack ...

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    from $68.60
  • Reed Switch Set, Open Loop, Miniature 1/4" Recessed Press Fit w/ Cable Leads
    from $67.00

    Reed Switch Set, Open Loop, Miniature 1/4" Recessed Press Fit w/ Cable Leads - 10 Pack

    60R-12-W
    GRI

    Description Open Loop, Miniature 1/4" Recessed Press Fit Reed Switch Set w/ Cable Leads - 10 Pack (White) The miniature 1/4" recessed reed switch...

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    from $67.00
  • Recessed 3/4in and 1in Stubby Steel Door Switch Set - 180RS/8080RS-T Series - 10 Pack
    from $64.60

    Recessed 3/4in and 1in Stubby Steel Door Switch Set - 180RS/8080RS-T Series - 10 Pack

    8080RS-T-W
    GRI

    These products are all Made to Order Which means they are non-cancelable and non-refundable Description Recessed 3/4” & 1” Stubby Steel Do...

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    from $64.60
  • Magnasphere Recessed 1/2” Switch Set - MS150-12/MS150-T Series - 10 Pack
    $216.40

    Magnasphere Recessed 1/2in Switch Set - MS150-12/MS150-T Series - 10 Pack

    MS150-12-W
    GRI

    These products are all Made to Order Which means they are non-cancelable and non-refundable Description Magnasphere Recessed 1/2” Switch Set -...

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    $216.40
  • Magnasphere Aluminum Industrial Switch Set - MS4400 Series
    from $81.64

    Magnasphere Aluminum Industrial Switch Set - MS4400 Series

    MS4400-A
    GRI

    These products are all Made to Order Which means they are non-cancelable and non-refundable Description Magnasphere Aluminum Industrial Switch...

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    from $81.64
  • Commercial Overhead Door Surface Mount Switch Set - 4110/4482 Series
    from $27.36

    Commercial Overhead Door Surface Mount Switch Set - 4110/4482 Series

    4482A
    GRI

    These products are all Made to Order Which means they are non-cancelable and non-refundable Description Commercial Overhead Door Surface Mount...

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    from $27.36
  • Super Miniature 1/4in Recessed Switch Set - 50RS-12 Series - 10 Pack
    from $51.00

    Super Miniature 1/4in Recessed Switch Set - 50RS-12 Series - 10 Pack

    50RS-12
    GRI

    These products are all Made to Order Which means they are non-cancelable and non-refundable Description Super Miniature 1/4” Recessed Switch...

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    from $51.00
  • Miniature Surface Mount Switch Sets
    from $62.00

    Miniature Surface Mount Switch Sets - 1100 Series - 10 Pack

    1100A-12
    GRI

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

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    from $62.00
  • N Series Switch Set Magnetic Contacts, Rare Earth Magnets w/ Press Fit Contacts
    from $59.60

    Rare Earth Mighty Mag Series Switch Sets - N20RS Series - 10 Pack

    N20RS-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 $59.60
  • 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