Ajax GlassProtect Black Wireless Glass Break Detector

Ajax GlassProtect Black Wireless Glass Break Detector

The Ajax GlassProtect is a compact wireless sensor built to listen for the distinct sound of a window shattering and instantly alert your security system. Using an electret microphone paired with Ajax's DualTone recognition software, the device tells the difference between a genuine break-in attempt and everyday household noise, so you get fewer nuisance alarms and more reliable protection for glazed openings.

Key Features

• Two-stage acoustic detection: The sensor must register a low-frequency impact sound followed by a high-frequency shattering sound within 1.5 seconds before triggering an alarm, which requires the device to detect a dull impact sound and a ringing sound of glass breaking in 1.5 seconds, decreasing the risk of false alarms.
• Adjustable sensitivity: Three sensitivity levels can be configured in the Ajax app, making the detector suitable for any object.
• Long detection range: it recognises the sound of shattering glass at a distance of up to 9 metres.
• Long wireless range: the communication range is up to 1,000 metres in line of sight.
• Extended battery life: the calculated battery life of the detector is up to 7 years from a pre-installed battery, using a standard CR123A cell.
• Third-party detector input: the unit has terminals for connecting a third-party wired NC detector, allowing installers to add any existing motion, opening or vibration detector into the system.
• Film-glass awareness: it does not respond to the breaking of glass covered with shockproof, sunscreen, decorative, or other film, so pair it with a shock/tilt detector for laminated windows.
• Tamper and jamming resistant: the housing includes anti-tamper protection and the radio link uses frequency hopping with device authentication to resist interference and forgery.
• Quick tool-free install: the sensor mounts on the SmartBracket panel in a few minutes without disassembling the case.

Where to Use It

GlassProtect Black is designed for indoor use in homes, offices, retail stores and warehouses wherever ground-floor or accessible windows need dedicated audio-based protection. Because it listens for the acoustic signature of breaking glass rather than relying on physical contact, it is well suited to shopfronts, glazed doors, display cabinets and any room with multiple panes that would otherwise require several contact sensors. Its discreet black finish blends into darker window frames and interior fittings, and it works alongside Ajax motion and opening detectors as part of a layered intrusion-detection setup.

What's in the Box

• GlassProtect Jeweller detector (black)
• SmartBracket mounting panel
• CR123A battery (pre-installed)
• External wired-detector contact terminal
• Installation kit and mounting tape
• Quick start user guide

Frequently Asked Questions

• Does GlassProtect need an Ajax hub to work? Yes, it communicates over the Jeweller radio protocol and must be paired with a compatible Ajax hub to arm, monitor and configure it through the Ajax app.
• Will it false-alarm on clapping or loud noises? No, the two-stage low-frequency-then-high-frequency detection logic is designed specifically to ignore claps, dropped objects and other everyday sounds.
• Can it protect laminated or film-covered glass? it does not react to breaking of film-covered glass such as shockproof, sunscreen or decorative film, and Ajax recommends pairing it with the DoorProtect Plus opening detector with shock and tilt sensors for that scenario.

Additional Resources

• More info