Security Accessories -Detectors and Brackets

Security Alarm Detectors, Sensors & Mounting Brackets

Shop security alarm detectors, motion sensors and detector brackets for residential and commercial alarm systems at CTC Communications. Choose from wired and wireless detectors from leading security brands including Bosch, Hills Reliance, Hikvision, Dahua and DSC Security.

The collection includes PIR motion detectors, microwave and multi-technology sensors, wireless detectors, outdoor detectors, reed switches, vibration sensors and detector mounting brackets. These devices can help protect rooms, hallways, entry points, garages, sheds, doors, windows and external areas as part of a compatible security alarm system.

Looking for pet-friendly detection? Check the individual detector specifications for pet-immune or suitable multi-technology models and always confirm compatibility with your alarm panel.

• Wide range of wired and wireless security alarm detectors.
• Indoor, outdoor, PIR, microwave and multi-technology options.
• Reed switches, vibration sensors and detector mounting accessories.
• Leading brands including Bosch, Hills Reliance, Hikvision, Dahua and DSC Security.
• Expert advice to help identify compatible alarm detectors and accessories.
• Australia-wide delivery available.
• Professional security alarm installation available across Sydney metro areas.

CTC Communications stocks security detectors and related mounting accessories from established alarm and security manufacturers.

• Bosch – wired and wireless motion detection for compatible Bosch alarm systems.
• Hills Reliance – detector options for compatible Reliance alarm systems.
• Hikvision – wireless detection options for compatible AX Pro systems.
• Dahua – wireless motion detection for compatible Dahua alarm systems.
• DSC Security – detector options for compatible DSC security systems.

Always confirm brand and model compatibility before purchasing replacement or additional detectors for an existing alarm system.

Choosing the Right Alarm Detector

Different areas of a property require different types of detection. Choosing the correct sensor depends on what you need to detect, where the detector will be installed and the alarm system it needs to communicate with.

• PIR Motion Detectors – detect changes in infrared energy caused by movement and are commonly used throughout homes and businesses.
• Microwave & Multi-Technology Detectors – combine detection technologies and can be useful in more challenging environments.
• Outdoor Motion Detectors – designed for suitable external areas including driveways, side access areas, yards and approaches to buildings.
• Wireless Detectors – communicate with a compatible wireless alarm receiver without requiring detector cabling back to the alarm panel.
• Reed Switches – monitor doors and windows and signal the alarm system when the protected opening changes state.
• Vibration Sensors – designed to detect physical disturbance or impact on suitable doors, windows and surfaces.

Browse our PIR & Microwave Motion Detectors for indoor motion detection options.

Should You Choose Wired or Wireless Detectors?

Security detectors can connect to an alarm system using either hard-wired cabling or wireless communication. The correct option depends on your alarm panel, available zones, compatible receivers and the location of the detector.

Wired alarm detectors

• Ideal for existing wired alarm systems.
• Commonly used in new construction and professional installations.
• No detector battery replacement for conventionally panel-powered sensors.
• Suitable where alarm cabling is already available.

Wireless alarm detectors

• Useful where running additional alarm cable is difficult.
• Suitable for compatible wireless and hybrid alarm systems.
• Can assist with retrofits and system expansions.
• Useful for detached areas where compatible wireless coverage is available.

Browse our Wireless Alarm Detectors .

Always confirm the detector is compatible with your alarm panel and wireless receiver before ordering. Wireless frequency and protocol compatibility can vary between alarm brands and systems.

Match the Detector to the Installation Area

Indoor and outdoor environments present very different detection conditions. A detector should always be selected according to its intended installation environment.

Indoor detection

Indoor PIR and multi-technology detectors are commonly installed in hallways, living areas, offices, storerooms, retail spaces and other internal areas where movement needs to be monitored.

Outdoor detection

Outdoor detectors are designed for suitable external environments and can provide earlier detection around approaches, yards, garages, sheds and perimeter areas.

Browse Outdoor Motion Detectors .

Outdoor detector performance depends heavily on correct positioning, environmental conditions, detection range and installation. Check the manufacturer's specifications before selection.

Security Sensors for External & Detached Areas

Driveways, garages and sheds often benefit from a combination of security sensors. The best option depends on whether you need to detect movement, a door opening, physical impact or activity approaching the building.

Driveways & outdoor areas

• Outdoor PIR motion detectors.
• Outdoor multi-technology detectors.
• Longer-range detectors where suitable for the application.
• Detection around side access points, garages and approaches to buildings.

Browse Outdoor Detectors

Garages & roller doors

A garage can use several types of detection depending on its layout and entry points.

• PIR detector – monitors movement inside the garage.
• Reed switch – monitors a compatible access door, garage door or roller door.
• Vibration sensor – detects physical disturbance or impact.

Browse Reed Switches or Vibration Sensors.

Sheds & detached buildings

Where supported by the alarm system, wireless sensors can be useful for detached garages and sheds where running new alarm cabling may be difficult.

• Wireless PIR detector for internal movement.
• Reed switch for doors and suitable windows.
• Vibration sensor for vulnerable entry points or surfaces.
• Outdoor detector for surrounding approaches.

Browse Wireless Detectors .

Metal sheds, building materials, environmental conditions and distance from the alarm receiver can affect wireless performance. Check wireless range and compatibility before installation.

Motion Detection for Homes with Pets

Homes with cats and dogs may require pet-friendly or pet-immune motion detectors designed to help reduce nuisance alarms caused by normal pet movement.

Pet-friendly performance varies between detector models and can depend on factors including the animal's size, mounting height, room layout and furniture that allows pets to move closer to the detector.

• Check the manufacturer's specified pet immunity rating.
• Install the detector at the recommended mounting height.
• Avoid aiming detectors towards furniture pets can climb onto where possible.
• Confirm compatibility with your alarm panel before purchasing.

For more information, read our Pet-Friendly Home Security Systems guide .

Why Use a Motion Detector Bracket?

Compatible detector brackets and mounting accessories can help position alarm sensors correctly and provide a cleaner, more flexible installation.

• Improved positioning – helps aim compatible detectors towards the required detection area.
• Flexible mounting – useful for wall, corner and difficult mounting positions.
• Professional finish – can provide a cleaner mounting position and cable entry.
• Better coverage planning – allows compatible detectors to be positioned according to the site layout.

Use brackets designed for the specific detector model wherever required. Incorrect mounting angles can affect the detector's intended coverage pattern.

Learn More About Alarm Detectors

Best Security Setup for Driveways, Garages and Sheds
Learn how outdoor detectors, reed switches, vibration sensors, CCTV and alarm systems can work together to protect external and detached areas.
Read the Guide

Pet-Friendly Home Security Systems: What You Need to Know
Learn about detector options for homes with pets and ways to help reduce nuisance alarms.
Read the Guide

Bosch Home Alarm System: Wired or Wireless
Compare wired and wireless options when choosing or upgrading a Bosch alarm system.
Read the Guide

If you’re not sure which detector suits your alarm system, send us your alarm panel brand and model, whether you need wired or wireless detection and where the sensor will be installed. We’ll help identify suitable detector options.

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