Ajax GlassProtect White Wireless Glass Break Detector (Jeweller)

Ajax GlassProtect White Wireless Glass Break Detector

The Ajax GlassProtect is a compact, battery-powered acoustic sensor built to catch the sound of breaking glass on windows, glass doors, and storefronts before an intruder gets further into the premises. Communicating over Ajax's encrypted Jeweller radio protocol, it pairs with any Ajax hub to deliver fast, reliable alerts while its DualTone analysis engine keeps everyday household and street noise from triggering false alarms.

Key Features

• DualTone detection algorithm: Listens for both the initial impact sound and the higher-frequency shattering sound of glass, only raising an alarm when both signatures are detected in sequence.
• Long detection range: Covers glass surfaces up to 9 metres away across a wide field of coverage, suiting large windows, sliding doors, and shopfronts.
• Encrypted two-way Jeweller radio: Uses secure, tamper-resistant wireless communication with the hub, with a line-of-sight range that can extend to hundreds of metres depending on the hub and environment.
• Adjustable sensitivity: Three sensitivity levels can be set and tested through the Ajax app to suit the specific room and glazing.
• Long battery life: Runs on a pre-installed CR123A battery rated for up to seven years of typical use, minimising maintenance visits.
• Third-party detector input: Includes a terminal for wiring in an external NC detector such as a motion, opening, or vibration sensor, extending the zone's protection.
• Tamper and self-monitoring protection: Detects attempts to remove or force the unit off its mounting bracket and continually reports its own status to the hub.
• Quick tool-free installation: Mounts on the included SmartBracket panel and pairs to the system in seconds via QR code scanning in the Ajax app.
• Discreet white housing: A slim, neutral-coloured enclosure that blends into most indoor decors without drawing attention.

Where It's Used

GlassProtect White is designed for indoor use in homes, apartments, offices, retail stores, and warehouses where glass windows or doors present an entry risk. It is typically mounted on a wall or ceiling facing the glass it is meant to monitor, working alongside motion and door/window sensors as part of a layered Ajax intrusion detection system. Because it ignores common background noise like traffic, thunder, or barking dogs, it is well suited to busy urban environments and shopfronts with street-facing glazing. Note that it will not detect breakage on glass covered with shockproof, sunscreen, or decorative film; for filmed glass, an Ajax detector with shock and tilt sensing is recommended instead.

What's in the Box

• GlassProtect glass break detector (White)
• SmartBracket mounting panel
• CR123A battery (pre-installed)
• Cable/terminal for connecting a third-party wired detector
• Installation kit
• Quick start guide

Frequently Asked Questions

Does GlassProtect need a wired connection?
No. It runs entirely on its pre-installed battery and communicates wirelessly with the Ajax hub via the Jeweller protocol, though it does offer an optional terminal for a wired third-party detector.

How far can it detect glass breaking?
It can recognise glass breaking sounds at a distance of up to 9 metres, depending on room acoustics and glazing type.

Will it false-alarm on loud noises like traffic or dogs?
The DualTone algorithm requires both an impact sound and a matching high-frequency shattering sound in sequence, which is specifically designed to filter out unrelated noises such as barking, thunder, or passing vehicles.

Additional Resources

• More info