Skip to content
#1 Source in low voltage wire and cable. Call us today to learn more about special offers.
#1 Source in low voltage wire and cable. Call us today to learn more about special offers.

Filter

Brands

Sensor Type

clear

Standards

Price

Color

Collection

clear

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.

  • 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...

    View full details
    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 ...

    View full details
    $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 ...

    View full details
    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...

    View full details
    $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...

    View full details
    $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...

    View full details
    $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...

    View full details
    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...

    View full details
    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...

    View full details
    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...

    View full details
    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...

    View full details
    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...

    View full details
    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...

    View full details
    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...

    View full details
    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...

    View full details
    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...

    View full details
    $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...

    View full details
    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 ...

    View full details
    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" ...

    View full details
    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...

    View full details
    $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...

    View full details
    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/...

    View full details
    $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...

    View full details
    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...

    View full details
    $49.48
  • AA Dual Function Series Switch
    from $77.96

    AA Dual Function Series Switch

    AA29P-W
    GRI

    These products are all Made to Order Which means they are non-cancelable and non-refundable Description 2 A Form Reeds Switch, Surface Mount, ...

    View full details
    from $77.96
  • Dual Function Switch
    from $248.40

    Dual Function Switch, 2 A Form Reeds, 3/4" Recessed Steel Door, 4 C Jacketed Cable (UL 10C Fire Rated)

    AA180-B
    GRI

    Description 2 A Form Reeds Switch, 3/4" Recessed Steel Door, 4 C Jacketed Cable (UL 10C Fire Rated) - 10/pack This AA switch can be used in numer...

    View full details
    from $248.40
  • AC Dual Function Series Switch Set
    from $220.00

    AC Dual Function Series Switch Set

    AC180-W
    GRI

    These products are all Made to Order Which means they are non-cancelable and non-refundable Description Dual Function Switch, 1 A + 1C Form Re...

    View full details
    from $220.00
  • Magnets In Cases - 100 Pack
    from $126.00

    Magnets In Cases - 100 Pack

    M-SASH-W
    GRI

    These products are all Made to Order Which means they are non-cancelable and non-refundable Description Magnets In Cases - 100 Pack Magnets Av...

    View full details
    from $126.00
  • Magnets In Extruded Aluminum Cases
    from $10.82

    Magnets In Extruded Aluminum Cases, Wall Mount, 3 1/4" Or 3 3/4" x 1 1/8"

    M-250
    GRI

    Magnet In Extruded Aluminum Case, Wall Mount Choose between a magnet case size of 3 1/4" x 1 1/8" or 3 3/4" x 1 1/8". Dimensions given apply to the...

    View full details
    from $10.82
  • Magnets In Industrial Aluminum Housing Cases
    $712.00

    Industrial Aluminum Housing Magnets In Cases - 3.10" x 2.14" - 100 Pack

    M4532
    GRI

    These products are all Made to Order Which means they are non-cancelable and non-refundable Description Industrial Aluminum Housing Magnets In...

    View full details
    $712.00
  • Mighty Mag Rare Earth Magnet In Case
    from $39.20

    Mighty Mag Rare Earth Magnet In Case, 0.22" x 0.46" x 0.96" - 10 Pack/ 100 Pack

    CMMF-875-B-10
    GRI

    Description Rare Earth Magnet (Mighty Mag) In Case - 10 Pack or 100 Pack Mighty Mags assist in resolving the installer's problem of drilling into t...

    View full details
    from $39.20
  • Mighty Mag Rare Earth Magnet
    from $8.20

    Mighty Mag Rare Earth Magnets (Flat) - 10 Pack

    MM-45
    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...

    View full details
    from $8.20
  • Concealed Concrete Switch Sets - 4510A Series
    from $48.02

    Concealed Concrete Switch Sets - 4510A Series

    4510A
    GRI

    These products are all Made to Order Which means they are non-cancelable and non-refundable Description Concealed Concrete Switch Sets Perhaps...

    View full details
    from $48.02
  • Industrial Extended 3.25™ Gap Overhead Aluminum Door Switch
    from $63.18

    Extended Gap Surface Mount Switch Sets - 200WG Series

    200-36WG
    GRI

    These products are all Made to Order Which means they are non-cancelable and non-refundable Description 200WG Series Extended Gap Surface Moun...

    View full details
    from $63.18
  • Mini Curtain Door Switch With 36" Armored Cable
    from $49.64

    Mini Curtain Door Switch Sets - 4612 Series

    4612
    GRI

    These products are all Made to Order Which means they are non-cancelable and non-refundable Description Mini Curtain Door Switch Sets - 4612 S...

    View full details
    from $49.64
  • Special Purpose Pull Apart Surface Mount Reed Switch Set - 4704 Series
    from $31.60

    Special Purpose Pull Apart Surface Mount Reed Switch Set - 4704 Series

    4704-A
    GRI

    These products are all Made to Order Which means they are non-cancelable and non-refundable Description Special Purpose Pull Apart Surface Mo...

    View full details
    from $31.60
  • Miniature Aluminum Commercial Switch Set
    from $126.80

    Miniature Aluminum Commercial Surface Mount Switch Set - 4460 Series, 10/pack

    4462A
    GRI

    These products are all Made to Order Which means they are non-cancelable and non-refundable Description Miniature Aluminum Commercial Surface ...

    View full details
    from $126.80
  • Industrial Track Mount Switch Set
    from $71.80

    Industrial Track Mount Switch Set - 4700-A Series

    4700-A
    GRI

    These products are all Made to Order Which means they are non-cancelable and non-refundable Description Industrial Track Mount Switch Set - 47...

    View full details
    from $71.80
  • Industrial Tamper Proof Surface Mount Switch
    from $100.40

    Industrial Surface Mount Closed Loop Switch Set - 400 Series - 10 Pack

    400-G
    GRI

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

    View full details
    from $100.40
  • Reed Switch Set, Closed Loop
    from $51.40

    Super Miniature Surface Mount Switch Sets - 505 Series - 10 Pack

    505-W
    GRI

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

    View full details
    from $51.40
  • Reed Switch Set, Closed Loop
    from $49.00

    Standard Surface Mount Switch Sets - 28/29 Series - 10 Pack

    28A-W
    GRI

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

    View full details
    from $49.00
  • Rare Earth Window Channel Magnet - 10 Pack
    $24.80

    Rare Earth Window Channel Magnet - 10 Pack

    MC-25
    GRI

    Description Rare Earth Window Channel Magnet - 10 Pack (White) Rare earth magnet that was especially designed to be mounted in the track of alumi...

    View full details
    $24.80
  • 3/8" Press Fit With Flat Magnet Switch Sets - 5088 Series - 10 Pack
    from $42.20

    3/8" Flat Magnet Recessed Switch Sets - 5088 Series - 10 /Pack

    5088
    GRI

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

    View full details
    from $42.20
  • Alnico V Bare Magnet W/ Tape
    $150.00

    Alnico V Bare Magnet 1/8in x 3/8in x 7/8in w/ Adhesive Tape - 10 Pack

    MF-875
    GRI

    These products are all Made to Order Which means they are non-cancelable and non-refundable Description Alnico V Bare Magnet 1/8" x 3/8" x 7/8...

    View full details
    $150.00