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Security Alarm Sensors and Switches

Electronic Security Sensors and Switches

Secure your perimeter with glass break sensors and magnetic contact switches. These handy devices often serve as first point of contact with potential intruders. Magnetic contact switches protect doorways and windows, serving as a trigger for alarm systems when unauthorized intrusion is detected. Motion detection devices can also be used to activate surveillance cameras only when movement is discovered.

We offer an expansive selection of magnetic contact switches, glass break sensors, and pre wire plugs to serve as that first line of defense. A popular pre wire plug we offer is the Pre-Wire Plugs, Reusable, Self Locking, ¾”. Cost effective and re-usable, these are ideal for pre-wiring recessed contacts. Available in white, these devices are easy to install and are self locking. These magnetic contact switches are available in ¾” diameter and ½” diameter sizes in 1” and 1 ½” lengths.

A popular magnetic contact switch set we offer is the Reed Switch Set, Closed Loop, 3/4" Short STUBBY. These magnetic contact switches are sold in 10 packs with cable leads and rare earth magnets. These operate with up to a 5/8” gap on steel, and are sold in closed loop configuration. We sell these magnetic contact switches with 22 gauge leads in 12”, 36”, and 72” lengths.

Protect your windows with glass break sensors like the Digital Acuity Glass Break Sensor. It has high radio frequency immunity with an SMD construction. It rejects white noise and has a high level static and transient protection. This glass break sensor has a jumper for selectable sensitivity range. It is microprocessor based and has an installer test mode.

Complete The Network

Primus Cable offers a wide selection of security alarm cable to ensure your network is efficient and secure. If you have any questions about which cable is right for you, our team of professionals are happy to assist you!

If you have any questions, feel free to give us a call or email us.

  • Reusable Pre-Wire Plug, 3/4" Diameter x 1 1/2" L
    $4.24

    Pre-Wire Plugs, Reusable, Self Locking, 3/4" Diameter x 1 1/2" Length, White - 10 Pack

    AL-GRI-4363
    GRI

    These products are all Made to Order Which means they are non-cancelable and non-refundable Description Self Locking Pre-Wire Plugs, 3/4" Diam...

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    $4.24
  • Pre-Wire Plugs, Reusable, Round Flanged, 1/4"
    from $1.80

    Pre-Wire Plugs - 10 Pack

    PW-50RF
    GRI

    These products are all Made to Order Which means they are non-cancelable and non-refundable Description Pre-Wire Plugs - 10 Pack These Pre-Wir...

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    from $1.80
  • Miniature Floor Mount Cast Aluminum Overhead Door Switch Set Magnetic Contact, 2 1/2" Gap
    from $18.84

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

    AL-GRI-4708-MC
    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 $18.84
  • Pool Alarm Recessed Door Alert
    from $94.48

    Pool Alarm Door Alert - ETL Listed - 289 Series - Closed Loop

    289-1C
    GRI

    These products are all Made to Order Which means they are non-cancelable and non-refundable Description Pool Alarm Door Alert - ETL Listed - 2...

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    from $94.48
  • Miniature "shortie" Recessed 3/8" Diameter Switch Set Magnetic Contact, 1/2"+ Standard Gap, .625" length
    from $41.20

    Miniature 3/8” Recessed Switch Set - 20RS-12/20RS-T Series - 10 Pack

    20RS-12
    GRI

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

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    from $41.20
  • Magnasphere Surface Mount Switch Set - MS28/MS29 and MS29P Series - 10 PACK
    from $197.40

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

    MS28A
    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 $197.40
  • Reed Switch Set, 3/8"
    from $32.20

    3/8” Dia. Recessed Switch Set - 2020-12/2020-T Series - 10 Pack

    2020-12
    GRI

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

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    from $32.20
  • Rare Earth Magnet Switch Sets
    from $72.60

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

    NPNB-N30RS-12
    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 $72.60
  • Super Miniature 1/4" Recessed Switch
    from $31.60

    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 $31.60
  • recessed Switch Current Controller
    $55.72

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

    AL-GRI-2042-CC
    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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    $55.72
  • Pool Alarm Kit
    from $98.08

    Pool Alarm Kit - ETL Listed - 289-4/DPA-10R Series

    289-4KIT
    GRI

    These products are all Made to Order Which means they are non-cancelable and non-refundable Description Pool Alarm Kit - ETL Listed It's all i...

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    from $98.08
  • Reed Switch Set (Heavy Duty) With Armored Cable
    $35.94

    Special Purpose Pull Apart Surface Mount Reed Switch Set (Heavy Duty) With Armored Cable

    AL-GRI-6129-PA
    GRI

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

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    $35.94
  • 120T/4473 Series 3/4" Switch 3/8" Magnet Recessed Switch Sets
    $28.72

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

    AL-GRI-4473
    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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    $28.72
  • Security Switch Spacers
    from $2.44

    Security Switch Spacers

    S-27T
    GRI

    These products are all Made to Order Which means they are non-cancelable and non-refundable Description Security Switch Spacers  These Securit...

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    from $2.44
  • "L" Bracket & "Z" Bracket
    from $11.38

    "L" Bracket & "Z" Bracket

    27LB
    GRI

    These products are all Made to Order Which means they are non-cancelable and non-refundable Description L Bracket & Z Bracket  These Brack...

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    from $11.38
  • High Security Surface Mount Magnetic Switches
    from $211.70

    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 $211.70
  • Emergency Alarm
    from $25.52

    Emergency Alarm - Panic Switch

    GR3045
    GRI

    These products are all Made to Order Which means they are non-cancelable and non-refundable Description Panic Switch This Panic Switch can moun...

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    from $25.52
  • Non-metallic Weatherproof Exterior Keypad Enclosure with Clear Cover
    $37.60

    Keypad Enclosure, Non-metallic Weatherproof Exterior, Existing or New Construction

    DBLVM2C
    Arlington

    The Keypad Is Not Included with these products Description Keypad Enclosure, Non-metallic Weatherproof Exterior, Existing or New Construction Try A...

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    $37.60
  • Weatherproof, Non-Metallic Keypad Enclosure with Clear Plastic Cover
    from $15.18

    Keypad Enclosure - Weatherproof Non-Metallic, Clear or White Plastic Cover

    DBK55C
    Arlington

    Some items may require minimum order quantities which can be changed in your shopping cart. The Keypad Is Not Included with this product Des...

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    from $15.18
  • Pool Alarm Recessed Door Alert
    $94.48

    Pool Alarm Door Alert - 189N Series - Open Loop

    189N-1
    GRI

    These products are all Made to Order Which means they are non-cancelable and non-refundable Description Pool Alarm Door Alert - ETL Listed - 1...

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    $94.48
  • Pool Alarm Recessed Door Alert
    $94.48

    Pool Alarm Door Alert - 289N Series - Closed Loop

    289N-1
    GRI

    These products are all Made to Order Which means they are non-cancelable and non-refundable Description Pool Alarm Door Alert - 289 Series The...

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    $94.48
  • Magnasphere Recessed 1/2” Switch Set - MS150-12/MS150-T Series - 10 Pack
    Call for Pricing

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

    MS150-12
    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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    Call for Pricing
  • Temperature Sensor - T8800 Series
    from $25.36

    Temperature Sensor - T8800 Series

    T8800R
    GRI

    These products are all Made to Order Which means they are non-cancelable and non-refundable Description Temperature Sensor The T8800 Sensor is...

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    from $25.36
  • "L" & "Z" Brackets
    from $1.84

    "L" & "Z" Brackets

    S-41
    GRI

    These products are all Made to Order Which means they are non-cancelable and non-refundable Description "L" & "Z" Brackets For use with Co...

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    from $1.84
  • Vent Switch
    from $18.14

    Venting Switch Set - VS Series

    VS-06
    GRI

    These products are all Made to Order Which means they are non-cancelable and non-refundable Description Venting Switch Set - VS Series This un...

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    from $18.14
  • Fixed Temperature Sensors
    from $18.00

    Fixed Temperature Sensors

    T8000
    GRI

    These products are all Made to Order Which means they are non-cancelable and non-refundable Description Fixed Temperature Sensors For those p...

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    from $18.00
  • Super Miniature 1/4” Recessed Switch Set - 50RS-12 Series - 10 Pack
    from $41.20

    Super Miniature 1/4” 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 $41.20
  • Reed Switch Set, Small Miniature Surface Mount w/ Center Leads & Break Away Flange
    from $37.00

    Miniature Surface Mount Switch Sets - 50/50F/55F Series - 10 Pack

    55F-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 $37.00
  • Reed Switch Set, Miniature 1/4" Recessed w/ Cable Leads - 10 Pack
    from $57.80

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

    AL-GRI-6609-RS
    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 $57.80
  • N Series Switch Set Magnetic Contacts, Rare Earth Magnets w/ Press Fit Contacts
    from $48.00

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

    N20RS-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 $48.00
  • Press Fit Reed Switch, 3/8" Recessed w/ Cable Leads and Nickel Plated Magnets
    from $37.80

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

    N2020-12
    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 $37.80
  • Press Fit Reed Switch, 3/4" Recessed w/ Cable Leads and Nickel Plated Magnets
    from $41.80

    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 $41.80
  • 120T/4473 Series 3/4" Switch 3/8" Magnet Recessed Switch Sets
    from $36.60

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

    120T-12
    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 $36.60
  • Reed Switch Set, Closed Loop, 3/4"
    from Call for Pricing

    Recessed 3/4” and 1" 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
  • Pool Alarm Recessed Door Alert
    from Call for Pricing

    Pool Alarm Door Alert - ETL Listed - 189 Series - Open Loop

    189-1C
    GRI

    These products are all Made to Order Which means they are non-cancelable and non-refundable Description Pool Alarm Door Alert - ETL Listed - 1...

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    from Call for Pricing
  • HVAC/O KIT - Specified Resistor Value - Omni Directional(Optional)
    from $33.98

    HVAC/O KIT - Specified Resistor Value - Omni Directional(Optional)

    HVAC-KIT
    GRI

    These products are all Made to Order Which means they are non-cancelable and non-refundable Description HVAC-KIT - Specified Resistor Value Th...

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    from $33.98
  • Box Tamper Switch With 12" Wire Leads
    from $73.40

    Box Tamper Switch - TS-01 Series - 10 Pack

    TS-01S
    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 $73.40
  • 10.91mm Power Transfer Device
    from $17.00

    Power Transfer Device With Custom Lengths

    PTDCL
    GRI

    These products are all Made to Order Which means they are non-cancelable and non-refundable Description Power Transfer Device With Custom Leng...

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    from $17.00
  • Reed Switch Set, Micro Surface Mount w/ Self-Stick Adhesive & Center Leads
    from $42.20

    Micro Surface Mount Switch Set - 500 Series - 10 Pack

    502-12
    GRI

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

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    from $42.20
  • Recessed 3/8” Flanged Switch Set - 20F/20 OF Series - 10 Pack
    from Call for Pricing

    Recessed 3/8” 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 Call for Pricing
  • Recessed 3/8" Switch Set Magnetic Contact, 1" Plus Standard Gap, 12" leads, White
    from $34.20

    Rare Earth Mighty Mag Series Switch Sets - N5065 Series - 10 Pack

    N5065-72
    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 $34.20
  • Recessed 1/2" Switch Set - 150 Series - 10 Pack
    from Call for Pricing

    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 Call for Pricing
  • Recessed 1/2” Short Switch Sets - 150RS Series - 10 Pack
    from $50.80

    Recessed 1/2” 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 $50.80
  • Push Button/Plunger Switch - PB-100/PBF-100 Series - 10 Pack
    from $55.20

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

    PBF-100-12
    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 $55.20
  • Press Fit Reed Switch 3/8"
    from $38.00

    Recessed 3/8” 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 $38.00
  • Miniature Flanged Surface Mount Switch Set - 1" Gap - 200V/140V
    from $39.60

    Miniature Surface Mounted Switch Sets With Leads - 100/110 Series - 10 Pack

    100-12
    GRI

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

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    from $39.60
  • Mighty Mag Rare Earth Magnets (Round) - 10 Pack
    from $8.80

    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 $8.80
  • Liquid Level Detector
    from $49.52

    Liquid Level Sensor - 2826/2826FS

    2826FS
    GRI

    These products are all Made to Order Which means they are non-cancelable and non-refundable Description Liquid Level Sensor - 2826/2826FS The ...

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    from $49.52