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GlassProtect U.
Wireless glass break detector with a microphone
Standards and certifications
GlassProtect U Jeweller · GP.S.J-000-EU. Manufacturer-listed marks; regional and installation conditions apply.
Recognise the sound of breaking glass.
GlassProtect U Jeweller uses a microphone and DualTone analysis to identify the sequence of an impact followed by shattering glass. Three sensitivity levels help adapt it to suitable glazing inside a room. It also supports an additional wired contact, with events and device status kept in the same Ajax system.
Key features. At a glance.
Up to 9 m1
of the glass break detection range
180° glass break detection angle
Adaptable to any facility
thanks to 3 sensitivity levels
digital algorithm to prevent false alarms
Remote control and configuration
Up to 7 years2
of operation on the pre-installed battery
Connector
for a third-party NC detector
Holding screw
to secure the detector on a mounting panel
Up to 1,000 m3
of communication range with an Ajax hub or range extender
Power adjustment
2 colors
Informative push notifications
Hassle-free installation
- 1Range is measured in open space; walls and installation conditions reduce it.
- 2The manual’s seven-year figure uses a five-minute hub polling interval. Actual life depends on use and settings.
- 3In an open space. Range is measured in open space; walls and installation conditions reduce it.
Ajax product information ↗ · GlassProtect U Jeweller specifications ↗
Protection in real places.
GlassProtect U Jeweller
Every detail has a purpose.
Explore the function, installation and system requirements of GlassProtect U Jeweller.
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Listen for the sequence of breaking glass.
Place the microphone where it can hear the protected glazing without curtains or objects blocking the sound.
Two sounds before an alarm
DualTone checks for the low-frequency impact followed by high-frequency glass shattering within 1.5 seconds. This helps distinguish a real break from a similar isolated sound.
Detection range is 0.3–9 m with a 180° horizontal angle. The maximum depends on glass type, size and the selected sensitivity.
Check that the glass is suitable.
Film-covered glass needs another approach
This detector does not detect breaking glass covered with security, sunscreen, decorative or other films. Consider an appropriate shock detector for those surfaces.
Specifications list glass at least 400 × 400 mm, with 4 mm standard or insulated glass and 6 mm tempered glass at High sensitivity. Carry out the detection-zone test with the installed glazing.
Connect another normally closed contact.
An external detector input
An additional compatible wired NC contact can report events through GlassProtect U. Enable External Contact and test it as part of the system.
The input does not supply power to another detector. Follow the wiring instructions and provide a separate supply if that device needs one.
Power you can keep track of.
Replaceable batteries
One preinstalled CR123A battery provides up to seven years under the specified conditions. The Ajax app reports battery state and a replacement warning.
The manual’s seven-year figure uses a five-minute hub polling interval. Actual life depends on settings and use. Indoor only: −10°C to +40°C, IP50.
A secure link to your system.
Jeweller communication
Encrypted two-way communication carries commands, alarms and device status between the device and its compatible Ajax hub or assigned range extender.
Up to 1,000 m in open space. Walls, metal and other obstacles reduce usable coverage. Check signal strength at the installation position and use equipment for the same radio-frequency region.
Reach rooms beyond the direct radio link.
Plan the complete communication path
A compatible assigned range extender can connect a detector where the direct hub link is weak. Test the detector-to-extender path and the extender-to-hub path at their installed positions.
A range extender increases coverage, not the hub’s total device capacity. Ethernet on a supported extender is its connection to the hub; the detector itself stays wireless.
Protection that also watches itself.
Removal alerts
The tamper reports removal from the mounting panel. Secure the panel’s tamper fixing point and the holding screw, then test the removal event.
Connection and device status
Regular exchanges let the hub monitor the detector and report missing communication or a fault. Named events identify the device and room.
Connection-loss detection depends on the polling settings. Notifications require the configured system communication paths.
Authenticated communication
The hub authenticates the device during communication. Encryption protects exchanged commands and events against interception and spoofing.
Set up for the way the site works.
Connect
Scan the device QR code in the Ajax app, then assign a recognisable name and room. Check compatibility with the hub and any range extender before installation.
Find the right glass-break detector.
Compare protection for your glazing, including CombiProtect with room-motion detection. Check the glass, sound path and installation before choosing a detector.
Compare glass-break detectors →Every detail, in one place.
Communication
- Jeweller communication technology
- Two-way system communication for the functions specified for this model.
- Radio communication range
- up to 1,000 m Between the device and a hub (or a range extender) in an open space.
- Encrypted communication
- Encrypted device communication.
- Frequency hopping
- To prevent radio interference and jamming.
Detection
- Sensitive element
- electret microphone
- Glass break detection distance
- from 0.3 up to 9 m
- Glass break detection angles
- horizontal: 180°; vertical: N/A
- Sensitivity
- 3 levels Adjusted by PRO or user with admin rights in the Ajax app.
- False alarm prevention
- DualTone Two-factor glass break verification software algorithm: by low and high frequencies.
- Input to connect an additional detector
- Wired detector with the normally closed (NC) contact type.
Glass break characteristics
- Min size of the glass
- 400 × 400 mm Detection distance up to 9 m for all glass types when the High sensitivity level is selected.
- Type of glass and its thickness:
- standard pane — 4 mm; insulated glass — 4 mm; tempered glass — 6 mm
Sabotage protection
- Tamper alarm
- Notifications on attempts to detach the detector from the surface or remove it from the mounting panel.
- Holding screw
- to secure the detector on SmartBracket
- Protection against spoofing
- device authentication
- Communication loss detection
- after 36 s Detection time depends on the Jeweller/Fibra settings.
Power supply
- Battery
- 1 × CR123A Pre-installed.
- Calculated battery life
- up to 7 years
- Operating voltage range
- 2.1−3.3 V⎓
- Full battery capacity
- 1,600 mAh
Enclosure
- Dimensions
- 103 × 22 × 21 mm
- Weight
- 40 g
- Operating temperature range
- from −10 °C to +40 °C
- Operating humidity
- up to 75%
- Protection class
- IP50
What’s in the box
- GlassProtect U Jeweller
- SmartBracket mounting panel with holding screw
- CR123A battery (pre-installed)
- Outside-mounted terminal clamp
- Installation kit
- Quick start guide
For your installation
- Confirm the supported control panel, device software and regional radio version; test coverage at the final installation position.
- The device is designed for indoor use only.
Find the right protection.
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CombiProtect U Jeweller
Compare a combined motion and glass-break detector.