Security Accessories Reed Switches
📖 Overview: Reed Switches for Alarm Systems
Reed Switches – Door & Window Contacts for Reliable Security
Reed switches are a core alarm sensor used to protect doors and windows. One part of the contact (the switch) is installed on the frame, while the magnet is fitted to the door or window. When the door/window opens, the magnetic field breaks and the system can trigger an alarm.
Choose from flush (recessed) mounted or surface mounted reed switches to suit your door type, frame material and finish requirements.
Shop a wide range of reed switches from leading brands including Bosch, Sentrol and Tane.
🧰 Flush mounted (recessed) reed switches
Flush mounted reed switches (also called recessed) are installed inside the door frame for a discreet finish. A hole is drilled into the door jamb and the reed switch is inserted, with the matching magnet fitted into the moving door or window.
- Discreet appearance – hidden installation
- Great for new builds or when frames can be drilled
- Often cost-effective hardware, but installation can take longer
Looking for recessed models? Start here: Flush / Recessed Reed Switches.
🪟 Surface mounted reed switches
Surface mounted reed switches are fixed to the outside surface of a door or window frame. They’re a popular option for retrofits and situations where drilling isn’t ideal.
- Easy installation – ideal for upgrades and retrofits
- Multiple colour options – blends with common frame colours
- Suitable for roller doors with heavy-duty contact options
Looking for surface mount models? Browse here: Surface Mounted Reed Switches.
🧠 How to choose the right reed switch
- Door/window type – hinged, sliding, aluminium, timber, steel, or roller door.
- Mounting style – recessed for a hidden look, surface for fast retrofit installs.
- Cable & entry points – consider where wiring will run and how it will be concealed.
- Gap tolerance – ensure the magnet-to-switch distance suits your door/frame alignment.
- Environment – internal vs external exposure (weather-resistant options where required).
📚 Learn more: Top reed switch picks
Want a quick shortlist? Read our blog: The Top 3 Reed Switches.
📞 Need help selecting the right contact?
Tell us your door/window type (timber, aluminium, sliding, roller door) and whether you prefer recessed or surface mounting, and we’ll help you choose the best reed switch for your alarm system.
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Original price $81.90 - Original price $81.90Original price$81.90$81.90 - $81.90Current price $81.90
Hills Reliance RF-1110-07-1 Micro Wireless Door and Window Contact
HillsBest For Discreet wireless protection for indoor doors, windows, cabinets, drawers and other openings connected to a Hills Reliance XR ...
View full detailsOriginal price $81.90 - Original price $81.90Original price$81.90$81.90 - $81.90Current price $81.90Sold out -
Original price $106.58 - Original price $106.58Original price$106.58$106.58 - $106.58Current price $106.58Sentrol 2207AH‑L Heavy‑Duty Overhead Door Magnetic Contact, Aluminum Housing, SPDT Reed, Wide Gap
SentrolSentrol 2207AH Overhead Door Magnetic Contact, is a low profile and made of stainless steel Model : 2207AH-L Features Miniature, Low-profile Desig...
View full detailsOriginal price $106.58 - Original price $106.58Original price$106.58$106.58 - $106.58Current price $106.58 -
Original price $14.83 - Original price $14.83Original price$14.83$14.83 - $14.83Current price $14.83Sentrol SEN1035-N Reed Switch Mini Wide Gap, Normally open
SentrolSentrol Reed Switch Wide Gap Mini Miniature Magnetic Contacts with Wire Leads The 1035 Series magnetic contacts save installation time through the...
View full detailsOriginal price $14.83 - Original price $14.83Original price$14.83$14.83 - $14.83Current price $14.83 -
Original price $90.00 - Original price $90.00Original price$90.00$90.00 - $90.00Current price $90.00Sentrol 2302A-L Curtain door overhead contact with stainless steel armored cable
SentrolSentrol 2302A Channel Mount heavy Duty Roller Door Reed Switch. These Panel Door magnetic contacts are designed specifically for panel or sectiona...
View full detailsOriginal price $90.00 - Original price $90.00Original price$90.00$90.00 - $90.00Current price $90.00 -
Original price $12.60 - Original price $12.60Original price$12.60$12.60 - $12.60Current price $12.60Black Surface mount Reed Switch, Gap 50mm
BoschReed switch RW standard surface mounted Black, industry standard n/c contact with solder terminals, suitable for doors and windows. Model: REED1030...
View full detailsOriginal price $12.60 - Original price $12.60Original price$12.60$12.60 - $12.60Current price $12.60 -
Original price $25.99 - Original price $25.99Original price$25.99$25.99 - $25.99Current price $25.99TANE SM-35CWG-WH Surface Mount Magnetic Reed Switch, White ABS Housing, SPDT Output, 23 mm Gap, Screw Terminals
GenericReed Switch White Surface Mount Closed Standard Industry Size Contacts - Surface Mount Economical, and ideal for heavy steel doors and where a wid...
View full detailsOriginal price $25.99 - Original price $25.99Original price$25.99$25.99 - $25.99Current price $25.99 -
Original price $18.99 - Original price $18.99Original price$18.99$18.99 - $18.99Current price $18.99TANE SM‑20‑WG‑WH Surface Mount Wide‑Gap Magnetic Reed Switch, White ABS Housing, 50 mm Gap
TaneTane Surface Mount Reed Switch Model - SM20WG Tane Surface Mount Wide Gap Reed switch. Suitable for door opening and windows. White plastic NC su...
View full detailsOriginal price $18.99 - Original price $18.99Original price$18.99$18.99 - $18.99Current price $18.99 -
Original price $4.88 - Original price $4.88Original price$4.88$4.88 - $4.88Current price $4.88TANE TAP‑10‑WH Recessed Magnetic Reed Switch, White Plastic, 1x N/C Output
TaneTane Recessed Reed Switch White Model : TAP-10 Contact Size: .37"×1.26"(9.5mm×32mm) Standard Magnet Size: .37"×1.26"(9.5mm×32mm) Standard Gap: .6...
View full detailsOriginal price $4.88 - Original price $4.88Original price$4.88$4.88 - $4.88Current price $4.88 -
Original price $16.00 - Original price $16.00Original price$16.00$16.00 - $16.00Current price $16.00Sentrol 1078-N Steel Door Recessed Reed Switch, 1" Diameter, SPDT, 1/2" Gap Size , Closed Loop
SentrolSentrol Reed Switch Steel Door, SEN1078-N, 25mm (1") the 1078 Series Steel Door contacts are designed specifically for use in the steel doors commo...
View full detailsOriginal price $16.00 - Original price $16.00Original price$16.00$16.00 - $16.00Current price $16.00 -
Original price $89.45 - Original price $89.45Original price$89.45$89.45 - $89.45Current price $89.45Sentrol 2505A-L Aluminum Housing Armored Cable Contact,Closed Loop, Wide Gap, 3" Gap Size
SentrolThe 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 detailsOriginal price $89.45 - Original price $89.45Original price$89.45$89.45 - $89.45Current price $89.45 -
Original price $16.17 - Original price $16.17Original price$16.17$16.17 - $16.17Current price $16.17TANE TANRB-32-WH Roller Ball Reed Switch, Recessed Mount, White Plastic
SentrolSentrol Reed Switch Sentrol Short Roller Model: Sentrol Reed Switch Short Roller, RB-32-WH
Original price $16.17 - Original price $16.17Original price$16.17$16.17 - $16.17Current price $16.17 -
Original price $50.13 - Original price $50.13Original price$50.13$50.13 - $50.13Current price $50.13Sentrol 1076-N Steel Door Recessed Reed Switch, 1" Diameter, SPDT, 1/2" Gap Size
SentrolRecessed Steel Door Contact w/Wire Leads, 1" Diameter, SPDT, 1/2" Gap Size, Single Pole-Double Throw, White Features Recessed Steel Door Contact ...
View full detailsOriginal price $50.13 - Original price $50.13Original price$50.13$50.13 - $50.13Current price $50.13 -
Original price $69.41 - Original price $69.41Original price$69.41$69.41 - $69.41Current price $69.41Hills Reliance RF-DC101-K4 Wireless Door and Window Reed Switch
HillsBest For Adding wireless protection to doors, windows, cabinets and other indoor openings on a Hills Reliance XR or XRPro alarm system....
View full detailsOriginal price $69.41 - Original price $69.41Original price$69.41$69.41 - $69.41Current price $69.41 -
Original price $32.65 - Original price $32.65Original price$32.65$32.65 - $32.65Current price $32.65Sentrol 1078W-N Steel Door Recessed Reed Switch, 1" Diameter, SPDT, Wide Gap, 1" Gap Size , Closed Loop
SentrolThe 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 detailsOriginal price $32.65 - Original price $32.65Original price$32.65$32.65 - $32.65Current price $32.65 -
Original price $10.02 - Original price $10.02Original price$10.02$10.02 - $10.02Current price $10.02TANE 45-WH Ultra Mini Surface Mount Magnetic Reed Switch, White Plastic, ~32 mm Gap, Normally Closed Output,
TaneTANE-45 is an ideal reed switch for areas where a small or slim contact is needed. Model : Tane-45WH MODEL TANE-45 has super adhesive that does no...
View full detailsOriginal price $10.02 - Original price $10.02Original price$10.02$10.02 - $10.02Current price $10.02 -
Original price $34.45 - Original price $34.45Original price$34.45$34.45 - $34.45Current price $34.45Sentrol 1045T‑N Industrial Surface Mount Magnetic Reed Switch, White Plastic, 32 mm Gap, NC Output, Screw Terminals
SentrolSentrol 1045T series features a wider make distance, which permits faster installation, accommodates greater misalignment and works better on steel...
View full detailsOriginal price $34.45 - Original price $34.45Original price$34.45$34.45 - $34.45Current price $34.45 -
Original price $85.00Original price $85.00 - Original price $85.00Original price $85.00Current price $63.55$63.55 - $63.55Current price $63.55
Hikvision DS-PDMCX-E-WB AX PRO Wireless External Large Magnet Detector
HikvisionThe DS-PDMCX-E-WB is a wireless external opening detector, ideal for outdoor applications, UV stable. Model: DS-PDMCX-E-WB Features Wireless Exter...
View full detailsOriginal price $85.00Original price $85.00 - Original price $85.00Original price $85.00Current price $63.55$63.55 - $63.55Current price $63.55Save 25% -
Original price $68.53 - Original price $68.53Original price$68.53$68.53 - $68.53Current price $68.53
Risco Wireless Door/Window Contact, RWX73M43300D
RiscoThe RWX73M43300D is a 2-way multi-function transmitter ideal for wireless perimeter door/window protection in residential and small commercial appl...
View full detailsOriginal price $68.53 - Original price $68.53Original price$68.53$68.53 - $68.53Current price $68.53Sold out -
Original price $81.85 - Original price $81.85Original price$81.85$81.85 - $81.85Current price $81.85TANE‑66WG Commercial Track Mount Overhead Door Magnetic Reed Switch
TaneReed switch, Tane track mount for overhead door commercial. Model : TANE-66WG Features Contact Size: 2.76?L×3.15?W×1.57?H (70mm×80mm×40mm) Standar...
View full detailsOriginal price $81.85 - Original price $81.85Original price$81.85$81.85 - $81.85Current price $81.85 -
Original price $56.40 - Original price $56.40Original price$56.40$56.40 - $56.40Current price $56.40Sentrol 1076W-N Steel Door Recessed Reed Switch, 1" Diameter, SPDT, Wide Gap, 1" Gap Size
SentrolReed 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 detailsOriginal price $56.40 - Original price $56.40Original price$56.40$56.40 - $56.40Current price $56.40 -
Original price $4.82 - Original price $4.82Original price$4.82$4.82 - $4.82Current price $4.82
TANE FM‑106‑WH Surface Mount Magnetic Reed Switch, White Plastic, Normally Open Contact, 21 mm Gap
TaneTane Surface Mount Door and Window Contact Reed Model : FM-106 Contact Size: 1.32″L×.51″W×.3″H (33.6mm×13mm×7.5mm) Standard Magnet Size: 1.32″L×.5...
View full detailsOriginal price $4.82 - Original price $4.82Original price$4.82$4.82 - $4.82Current price $4.82Sold out -
Original price $58.52 - Original price $58.52Original price$58.52$58.52 - $58.52Current price $58.52Sentrol 1076CW-N Steel Door Recessed Reed Switch, 3/4" Diameter, SPDT, 3/4" Gap Size
SentrolReed 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 detailsOriginal price $58.52 - Original price $58.52Original price$58.52$58.52 - $58.52Current price $58.52 -
Original price $63.63 - Original price $63.63Original price$63.63$63.63 - $63.63Current price $63.63Sentrol SEN1076CH-N Reed Switch Recessed Magnetic Contact for Steel Doors, 9mm Gap, SPDT Output, 19mm Cutout
SentrolSentrol 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 detailsOriginal price $63.63 - Original price $63.63Original price$63.63$63.63 - $63.63Current price $63.63 -
Original price $126.96 - Original price $126.96Original price$126.96$126.96 - $126.96Current price $126.96
Digiflex Wireless Reed Switch with Universal TX, RF113W
BoschDigiflex wireless reed switch RF113W with internal magnetic contact to suit wireless receive RFRCSTR3, B812 with 5 years battery life. Model RF113...
View full detailsOriginal price $126.96 - Original price $126.96Original price$126.96$126.96 - $126.96Current price $126.96Sold out
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Why Professional Installers Always Prioritise Reed Switches
In professionally designed alarm systems, reed switches are not optional — they are essential. Motion detectors react after movement occurs, but magnetic contacts detect intrusion at the point of entry. Proper perimeter protection using high-quality reed switches significantly reduces false alarms and improves overall system reliability.
— CTC Communications | Trusted Security Specialists Since 1993
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