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Security Accessories Reed Switches

Reed Switches for Alarm Systems

Reed switches are used in alarm systems, they are located within the door and are known to be flush mounted. Or mounted on the door or window, surface mounted .One part of the contact is a switch installed in the window or door jam; the other contains a magnet and is placed in the window or door itself. 

Any noticeable shift in contact with the switch breaks the magnetic field and triggers an alarm.

Check out our huge selection range of reed switches from leading brands Bosch, Risco, Sentrol, and Tane.

Flushmounted Reed Switches
Reed Switches as they are often called can be either recessed or flush mounted.
A hole is drilled inside the door jam and the reed switch is inserted. 
Flush mounted reed switches are often more inexpensive, but do require extra labour for installation.

Surface Mounted Reed Switches

Surface mounted reed switches are mounted to the surface of windows or doors, these reed switches are often available in multiple colours to blend in with home or office décor/ window frame to be discreet.

Surface mounted reeds can also be used for roller doors.
Top 3 Reed Switches

Check out our post on The Top 3 Reed Switches


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  • Sentrol Roller Door Reed Switch, 2202AU-L

    Sentrol Roller Door Reed Switch, 2202AU-L

    Sentrol
    $49.90 - $49.90
    $49.90
    $49.90 - $49.90
    $49.90

    Sentrol Roller Door Reed Switch, 2202AU-L, the 2200 Series overhead door magnetic contact is for use in the rigorous environments of commercial and...

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    $49.90 - $49.90
    $49.90
    $49.90 - $49.90
    $49.90
  • Sentrol Roller Reed Roller Shutter Heavy Duty, 2202A-L28
    Sentrol Roller Reed Roller Shutter Heavy Duty, 2202A-L28

    Sentrol Roller Reed Roller Shutter Heavy Duty SEN1046, 2202A-L28

    Sentrol
    $61.50 - $61.50
    $61.50
    $61.50 - $61.50
    $61.50

    Sentrol's Roller Reed Shutter Heavy Duty SEN1046 provides reliable security solutions with robust construction. Model: 2202A-L28 The floor mount un...

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    $61.50 - $61.50
    $61.50
    $61.50 - $61.50
    $61.50
  • Sentrol Industrial Wide Gap Surface Mount Magnetic Contacts

    Sentrol Industrial Wide Gap Surface Mount Magnetic Contacts, 2507AH-L

    Sentrol
    $124.00 - $124.00
    $124.00
    $124.00 - $124.00
    $124.00

    The 2500 Series is designed to be installed in commercial and industrial environments where a rugged sealed unit is required. It is ideal for metal...

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    $124.00 - $124.00
    $124.00
    $124.00 - $124.00
    $124.00
  • Sentrol 1125W-N Mini 3/8 Wide Recessed Press Fit, S2544

    Sentrol 1125W-N Mini 3/8 Wide Recessed Press Fit, S2544

    Sentrol
    $11.55 - $11.55
    $11.55
    $11.55 - $11.55
    $11.55

    Sentrol 1125W-N Mini 3/8 END Recessed Press Fit Model : S2532 The 1125 series stubby press fit magnetic contact is a 3/8-inch diameter switch desig...

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    $11.55 - $11.55
    $11.55
    $11.55 - $11.55
    $11.55
  • Sentrol Reed Switch Recessed, 1075W-N

    Sentrol Reed Switch Recessed, 1075W-N

    Sentrol
    $9.90 - $9.90
    $9.90
    $9.90 - $9.90
    $9.90

    The Sentrol 1075 series press fit switch is a 3/8-inch diameter magnetic contact with wire leads that uses no glue or screws to mount. Small ribs ...

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    $9.90 - $9.90
    $9.90
    $9.90 - $9.90
    $9.90
  • Sentrol Reed Switch, Steel Door Contact, SEN1078C-N
    Sentrol Reed Switch, Steel Door Contact, SEN1078C-N
    Sale Sale

    Sentrol Steel Door Recessed Reed Switch, 3/4" Diameter, SPDT, 3/8" Gap Size , Closed Loop, 1078C-N

    Sentrol
    $22.77
    $22.77 - $22.77
    $22.77
    $12.50
    $12.50 - $12.50
    $12.50

    The 1078 Series Steel Door contacts Sentrol reed switch is designed specifically for use in the steel doors commonly found in commercial building a...

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    $22.77
    $22.77 - $22.77
    $22.77
    $12.50
    $12.50 - $12.50
    $12.50
    Sale Sale
  • Sentrol Reed Switch Short Roller, RB-32-WH

    Sentrol Reed Switch Short Roller, RB-32-WH

    Sentrol
    $16.17 - $16.17
    $16.17
    $16.17 - $16.17
    $16.17

    Sentrol Reed Switch Sentrol Short Roller Model: Sentrol Reed Switch Short Roller, RB-32-WH

    $16.17 - $16.17
    $16.17
    $16.17 - $16.17
    $16.17
  • Sentrol Reed Switch Mini Wide Gap
    Sold out

    Sentrol Reed Switch Mini Wide Gap, Normally open, SEN1035-N

    Sentrol
    $11.75
    $11.75 - $11.75
    $11.75
    $10.75
    $10.75 - $10.75
    $10.75

    Sentrol Reed Switch Wide Gap Mini Miniature Magnetic Contacts with  Wire Leads The 1035 Series magnetic contacts save installation time through the...

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    $11.75
    $11.75 - $11.75
    $11.75
    $10.75
    $10.75 - $10.75
    $10.75
    Sold out
  • Sentrol Reed Switch Steel Door, SEN1078-N

    Sentrol Steel Door Recessed Reed Switch, 1" Diameter, SPDT, 1/2" Gap Size , Closed Loop, 1078-N

    Sentrol
    $14.00 - $14.00
    $14.00
    $14.00 - $14.00
    $14.00

    Sentrol Reed Switch Steel Door, SEN1078-N, 25mm (1") the 1078 Series Steel Door contacts are designed specifically for use in the steel doors commo...

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    $14.00 - $14.00
    $14.00
    $14.00 - $14.00
    $14.00
  • Sentrol Reed Switch Recessed Steel Door Contact 1/2

    Sentrol Steel Door Recessed Reed Switch, 1" Diameter, SPDT, 1/2" Gap Size , 1076-N

    Sentrol
    $23.96 - $23.96
    $23.96
    $23.96 - $23.96
    $23.96

    Recessed Steel Door Contact w/Wire Leads, 1" Diameter,  SPDT, 1/2" Gap Size, Single Pole-Double Throw, White Features Recessed Steel Door Contact ...

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    $23.96 - $23.96
    $23.96
    $23.96 - $23.96
    $23.96
  • Sentrol 2302 Series Curtain Door Contact, 2302A
    Sentrol 2302 Series Curtain Door Contact, 2302A
    Sale Sale

    Sentrol Curtain door overhead contact with stainless steel armored cable, 2302A-L

    Sentrol
    $138.60
    $138.60 - $138.60
    $138.60
    $100.10
    $100.10 - $100.10
    $100.10

    Sentrol 2302A Channel Mount heavy Duty Roller Door Reed Switch. These Panel Door magnetic contacts are designed specifically for panel or sectiona...

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    $138.60
    $138.60 - $138.60
    $138.60
    $100.10
    $100.10 - $100.10
    $100.10
    Sale Sale
  • Sentrol 2207AH-L Overhead Door Magnetic Contact

    Sentrol 2207AH-L Overhead Door Magnetic Contact, 2207AH-L

    Sentrol
    $102.50 - $102.50
    $102.50
    $102.50 - $102.50
    $102.50

    Sentrol 2207AH Overhead Door Magnetic Contact, is a low profile and made of stainless steel Model : 2207AH-L Features Miniature, Low-profile Desig...

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    $102.50 - $102.50
    $102.50
    $102.50 - $102.50
    $102.50
  • Sentrol Roller Door Reed Extra Heavy Duty, 2205A-L
    Sale Sale

    Sentrol Roller Door Reed Extra Heavy Duty, 2205A-L

    Sentrol
    $74.00
    $74.00 - $74.00
    $74.00
    $66.00
    $66.00 - $66.00
    $66.00

    Sentrol Overhead door floor mount extra heavy duty magnetic contact with aluminum housing, closed loop, wide gap, 3 in. gap size, 3 ft. stainless s...

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    $74.00
    $74.00 - $74.00
    $74.00
    $66.00
    $66.00 - $66.00
    $66.00
    Sale Sale
  • Reed Switch Sentrol wide gap 3/4 end on end, 1076CW
    Reed Switch Sentrol wide gap 3/4 end on end, 1076CW
    Sale Sale

    Sentrol Steel Door Recessed Reed Switch, 1" Diameter, SPDT, Wide Gap, 1" Gap Size , 1076W-N

    Sentrol
    $66.40
    $66.40 - $66.40
    $66.40
    $56.40
    $56.40 - $56.40
    $56.40

    Reed switch Sentrol wide gap 1" end on end, the 1076 Series Steel Door contacts are designed specifically for use in the steel doors commonly found...

    View full details
    $66.40
    $66.40 - $66.40
    $66.40
    $56.40
    $56.40 - $56.40
    $56.40
    Sale Sale
  • Sentrol Reed Switch Recessed magnetic contact for steel doors

    Sentrol Reed Switch Recessed magnetic contact for steel doors

    Sentrol
    $39.78 - $39.78
    $39.78
    $39.78 - $39.78
    $39.78

    Sentrol Reed Switch Recessed Magnetic contact for steel doors SPDT 30V AC/DC 0.25A, 3Watt 3/4" Diameter, White, ABD Plastic with Lead Wire The 1078...

    View full details
    $39.78 - $39.78
    $39.78
    $39.78 - $39.78
    $39.78
  • Sentrol Industrial Wide Gap Surface Mount Magnetic Contacts
    Sale Sale

    Sentrol Industrial Wide Gap Surface Mount Magnetic Contacts, 2505A-L

    Sentrol
    $114.00
    $114.00 - $114.00
    $114.00
    $95.00
    $95.00 - $95.00
    $95.00

    The 2500 Series is designed to be installed in commercial and industrial environments where a rugged sealed unit is required. It is ideal for metal...

    View full details
    $114.00
    $114.00 - $114.00
    $114.00
    $95.00
    $95.00 - $95.00
    $95.00
    Sale Sale
  • Sentrol Reed Sentrol Steel Door Recessed Reed Switch, 1" Diameter, SPDT, Wide Gap, 1" Gap Size , Closed Loop, 1078W-N
    Sentrol ReedSentrol Steel Door Recessed Reed Switch, 1" Diameter, SPDT, Wide Gap, 1" Gap Size , Closed Loop, 1078W-N
    Sale Sale

    Sentrol Steel Door Recessed Reed Switch, 1" Diameter, SPDT, Wide Gap, 1" Gap Size , Closed Loop, 1078W-N

    Sentrol
    $22.77
    $22.77 - $22.77
    $22.77
    $15.60
    $15.60 - $15.60
    $15.60

    The 1078 Series Steel Door contacts Sentrol reed switch is designed specifically for use in the steel doors commonly found in commercial building a...

    View full details
    $22.77
    $22.77 - $22.77
    $22.77
    $15.60
    $15.60 - $15.60
    $15.60
    Sale Sale
  • Sentrol Reed Switch, Steel Door Contact, SEN1078C-N
    Sentrol Reed Switch, Steel Door Contact, SEN1078C-N
    Sale Sale

    Sentrol Steel Door Recessed Reed Switch, 3/4" Diameter, SPDT, 3/4" Gap Size , Closed Loop, 1078CW-N

    Sentrol
    $22.77
    $22.77 - $22.77
    $22.77
    $17.80
    $17.80 - $17.80
    $17.80

    The 1078 Series Steel Door contacts Sentrol reed switch is designed specifically for use in the steel doors commonly found in commercial building a...

    View full details
    $22.77
    $22.77 - $22.77
    $22.77
    $17.80
    $17.80 - $17.80
    $17.80
    Sale Sale
  • Sentrol Industrial Surface Mount NC Magnetic Contact, 1045T-N
    Sentrol Industrial Surface Mount NC Magnetic Contact, 1045T-N
    Sale Sale

    Sentrol Industrial Surface Mount NC Magnetic Contact, 1045T-N

    Sentrol
    $56.89
    $56.89 - $56.89
    $56.89
    $46.89
    $46.89 - $46.89
    $46.89

    Sentrol 1045T series features a wider make distance, which permits faster installation, accommodates greater misalignment and works better on steel...

    View full details
    $56.89
    $56.89 - $56.89
    $56.89
    $46.89
    $46.89 - $46.89
    $46.89
    Sale Sale
  • Reed Switch Sentrol wide gap 3/4 end on end, 1076CW
    Reed Switch Sentrol wide gap 3/4 end on end, 1076CW
    Sale Sale

    Sentrol Steel Door Recessed Reed Switch, 3/4" Diameter, SPDT, 3/4" Gap Size , 1076CW-N

    Sentrol
    $66.40
    $66.40 - $66.40
    $66.40
    $56.40
    $56.40 - $56.40
    $56.40

    Reed switch Sentrol wide gap 3/4 end on end, the 1076 Series Steel Door contacts are designed specifically for use in the steel doors commonly foun...

    View full details
    $66.40
    $66.40 - $66.40
    $66.40
    $56.40
    $56.40 - $56.40
    $56.40
    Sale Sale

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