United States
DoorProtect U Jeweller
Wireless reed-switch opening detector
Product is not available in your region
Guardian for doors, windows, and valuables
DoorProtect U Jeweller is a version of Ajax’s well-known opening detector, refined to meet the strict UK standards. It delivers reliable protection wherever break-ins may occur — whether it’s doors, windows, or safes holding valuables. Its dual reed switches ensure accurate detection of unauthorized openings, while the anti-chatter technology minimizes false alarms. Two magnets of different sizes allow for adapting the detector installation to various door and window designs.
2 reed switches
the magnet can be placed on the left or right side of the detector
Protection against contact chatter
to prevent false alarms
More installation options
with two magnets included
Chime feature
when operating with Ajax sirens
Up to 7 years of operation
with the pre-installed battery
Remote control and configuration
Connector
for a third-party NC detector
Holding screw
to secure the detector on a mounting panel
2 colors
of matte enclosure
Informative push notifications
Critical
Ajax
Office: Opening detected, DoorProtect U Jeweller in Hall No. 1
Ajax
Production: device is detached from surface, DoorProtect U Jeweller in Warehouse.
Up to 1,200 m
communication range with an Ajax hub or range extender1
Jeweller radio communication
Power adjustment
In an Ajax system, you can combine devices of all product categories: Intrusion protection (both Superior and Baseline), Video surveillance, Fire and life safety, or Comfort and automation. Create the system to suit your needs and manage it in a single interface.
Wherever there is a risk of intrusion
Office
School
Store
Private clinic
Barbershop
Museum
Discover future-proof hardware
Two reed switches
Two magnets of different sizes
Pre-installed battery
Tamper to notify if a detector is dismantled
Jeweller antenna
Connector for a third-party NC detector
SmartBracket mounting panel
Holding screw for a more reliable fastening
Flexible mounting with two reed switches
DoorProtect U Jeweller uses two reed switches for trouble-free opening detection. This design offers more versatile mounting for different installation needs: the magnet can be positioned on either the left or right side of the detector. The reed switches are housed in durable plastic capsules, which ensures their integrity during transportation or accidental drops. For the optimal setup, installers can choose between a larger or a smaller magnet, both included in the kit.
Durable capsules for secure transportation
Two magnets of different sizes included
Left-side or right-side magnet placement
Enhanced security with additional detectors
DoorProtect U Jeweller features a connector for a third-party device2 with an NC contact. Installers can use it to add an existing or a new wired opening, motion, or vibration detector to an Ajax system. This integration streamlines monitoring over the both detectors within a single Ajax app interface.
Opening detector
Motion detector
Vibration detector
More than just a detector
If the system has sirens, DoorProtect U Jeweller can double as a shopkeeper’s bell. Once the door is opened, the siren signals it with one of four available sound patterns. Different signals can be assigned to separate entrances, ensuring that people on-site always know when someone enters through the main door or a back entrance. Configuring these settings takes just a few clicks in the Ajax app.
Sound signals for doors being opened
Signal customization for different security groups
Customizable signals for each entrance
For the Chime feature, the system requires a siren. Choose from a wide selection of indoor and outdoor sirens to unlock this feature and enhance on-site security.
Wire-free flexibility and reliable performance
DoorProtect U Jeweller operates wirelessly, providing maximum flexibility during installation. The pre-installed battery from trusted manufacturers ensures a hassle-free setup, requiring no extra steps for the device to begin operation. Each battery is thoroughly tested during production, and Ajax Systems inspects every unit to guarantee reliable performance. The battery can be easily replaced after approximately seven years of autonomous operation. Its status is always visible in Ajax apps. Users and security companies receive low battery notifications months in advance, so the replacement is always well-timed.
Real-time testing during battery production
Up to 7 years of autonomous operation
Early low battery notifications
Jeweller
Unique wireless technology
Jeweller is Ajax’s proprietary radio protocol for secure two-way communication. It provides a block encryption and device authentication during each communication session with Ajax hub or radio signal range extender. Jeweller prevents sabotage, spoofing, and data theft.
Up to 1,200 m of communication range in an open space
Data encryption
Notification of jamming and connection loss
Automatic power adjustment
Communication through steel and concrete
Some facilities have thick walls, metal partitions, or sheer distances that affect signal quality. Ajax range extenders are designed to increase the range of a wireless network and deliver stable connection with a hub despite the obstacles. And by choosing the model with an Ethernet cable connector, you get an additional communication channel. А single system can accommodate up to five range extenders.
Up to 5 range extenders within one system
Ethernet-equipped model available
System supervision
All Ajax devices perform automatic self-diagnosis and report their states to the hub. Essential parameters, including tamper, communication, power supply, and sensor statuses, are continuously monitored. The Ajax Cloud server controls communication between the hub and Ajax apps, ensuring instant notifications for ARCs, security companies, and users. In case of any malfunction or communication failure, an engineer is informed immediately to provide necessary services.
Automatic device self-diagnosis with a state report
Regular polling to display the current device state in Ajax apps
Instant maintenance notifications
Sabotage protection
Effortless installation and setup
DoorProtect U Jeweller is ready to operate straight out of the box. It is easy to install with the SmartBracket mounting panel — no need to disassemble the enclosure. Ajax apps help quickly make the device a part of the ecosystem: simply pair the device with the hub by scanning the QR code. It can always be reconfigured remotely without the need for on-site visits.
Pairing with the security system via a QR code
Effortless and secure installation with a SmartBracket mounting panel
Configuring and testing in the mobile Ajax PRO app
PRO Desktop app for macOS and Windows
In an open space.
DoorProtect U Jeweller cannot power a third-party detector. The power supply for this detector should be connected separately.
Technical information
More Ajax opening detectors
Ajax product categories
In an Ajax system, you can combine devices of all product categories: Intrusion protection (both Superior and Baseline), Video surveillance, Fire and life safety, or Comfort and automation. Create the system to suit your needs and manage it in a single interface.
