Ajax DoorProtect Plus Jeweler Black: Advanced Wireless Sensor for Opening, Shock and Tilt

Ajax DoorProtect Plus Jeweler Black: Advanced Wireless Sensor for Opening, Shock and Tilt

 
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38100.21.BL1 # 38100 | Ajax DoorProtect Plus Jeweller black is an advanced wireless sensor that combines opening, shock, vibration, and tilt detection thanks to the integrated reed switch and highly sensitive accelerometer, with three adjustable levels to ensure precise control and zero false alarms. Jeweller technology ensures encrypted communication up to 1,200 meters with anti-jamming protection, regular polling, and device authentication to prevent spoofing. Equipped with a chime function, NC terminals for external sensors, and two magnets for versatile installation, it offers up to 5 years of battery life with the pre-installed battery. Its compact black design and QR code installation make it ideal for professional security systems that require reliability, speed, and maximum protection against sabotage. Ajax

Technical Data Sheet

Reference: 38100.21.BL1

Brand: Ajax Systems

EAN: 4823114014925

Disponibilità: 21

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Born in 2011, Ajax System produces alarm and fire systems with JEWELLER radio protocol, a wireless technolog that allows to connect with a few taps the detectors in the mobile app. The Ajax System security system is easy to install in your apartment, home or office. By choosing Ajax System, you get integrated protection that is easy to manage, tamper-resistant and responds instantly to attacks. Ajax  System devices are easy to be installed: just 15 seconds to connect the control panel to the detectors. They can also support third-party surveillance cameras, making Ajax System a singular security center.

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Ajax SystemsAjax Systems

The alarm systems by Ajax System use a state-of-the-art wireless technology, thus making the devices very reliable and always connected. Ajax System detectors combine the best components with conceptual design.

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38100.21.BL1 | WIRELESS OPENING DETECTOR WITH REED RELAY


Ajax

The Ajax DoorProtect Plus Jeweller, 38100.21.BL1, black, is an advanced wireless sensor designed to ensure complete control of entrances thanks to the combined detection of opening, shock, vibration, and tilt via reed switches and a built-in accelerometer. Jeweller technology ensures encrypted communications up to 1,200 meters with anti-interference protection and continuous polling, while the anti-sabotage system with tamper and device authentication prevents spoofing and tampering. Quickly installed via QR code and powered by a CR123A battery with up to 5 years of battery life, it offers maximum reliability and versatility thanks to the two included magnets and NC terminals for external sensors.

Main specifications:

- Combined detection of aperture, shock, vibration and tilt with adjustable sensitivity

- Jeweler communication with encryption, frequency hopping and range up to 1,200 m

- Anti-sabotage protection with tamper alarm and anti-spoofing authentication

- Chime function and support for external sensors via NC input

- Up to 5 years of battery life with pre-installed battery and installation without opening the body

Further details

✅ Jeweler Communication :
Jeweller technology ensures secure and stable radio communication up to 1,200 meters in open terrain , using end-to-end encryption, frequency hopping, and regular polling to ensure continuous device monitoring. This protocol minimizes interference and jamming attempts, maintaining reliable data flow even in complex systems, while device authentication blocks any potential spoofing attempts.
✅ Detection :
The sensor integrates a high-precision reed switch for opening detection and an advanced accelerometer capable of identifying shocks, vibrations, and tilts between 5° and 25°, with three adjustable sensitivity levels. The option to ignore single impacts prevents false alarms, while the ability to connect external NC sensors further expands coverage, making gate control extremely accurate and customizable.
✅ Anti-sabotage protection:
The device offers complete protection against tampering thanks to the integrated tamper , which immediately signals unauthorized opening of the casing, and authentication systems that prevent fraudulent replacement or cloning of the sensor. The combination of encryption, frequency hopping, and continuous communication monitoring ensures an effective barrier against physical and digital sabotage.
✅ Power supply:
The DoorProtect Plus Jeweler is powered by a pre-installed CR123A battery that provides up to 5 years of battery life , reducing maintenance and ensuring continuous operation. The design allows for battery replacement without opening the device body, while optimized power consumption and low battery warnings ensure reliable and consistent operation over time.

Technical data sheet

38100.21.BL1
Communication
Jeweler communication technology Proprietary wireless communication technology to transmit commands, alarms, and events.
Key features:
  • Two-way communication.
  • Advanced anti-sabotage.
  • Block encryption featuring a dynamic key.
  • Instant notifications.
  • Remote configuration via the Ajax apps.
Radio frequency bands 866.0 - 866.5 MHz
868.0 - 868.6 MHz
868.7 - 869.2 MHz
905.0 - 926.5 MHz
915.85 - 926.5 MHz
921.0 - 922.0 MHz
Depence on the sales reaction
Maximum effective radiated power (ERP) up to 20 mW
Automatic power control to reduce power consumption and radio interference.
Radio signal modulation GFSK
Radio signal range Up to 1,200 m
up to 3,900 ft
Between the detector and a hub (or radio signal range extender) in an open space.
Encrypted radio communication All the data stored and transmitted are protected by block encryption featuring a dynamic key.
Frequency hopping To prevent radio interference and radio signal interception.
Detection
Sensitive element 1 × accelerometer
1 × reed switch
The magnet should be installed to the right of the detector.
Additional detector connection Third-party wired detector with the NC (normally closed) contact type*.
* Must be UL certified.
Shock sensitivity 3 levels
Adjusted by a PRO or user with admin rights in the Ajax app.
Option to ignore single shock Adjusted by a PRO or user with admin rights in the Ajax app.
Tilt sensor activation threshold from 5° to 25°
Adjusted by a PRO or user with admin rights in the jax app.
Recommendations Do not install the detector using both magnets at the same time. The detector recognizes only one magnet on one side of the detector.
Attach the magnet to the moving part of the door (window) to the right of the detector.
The side to which the magnet should be attached is marked with an arrow on the detector's enclosure.
The device is designed for indoor use only.
Sabotage protection
Tamper alarm Notifications on attempts to detach the device from the surface or remove it from the mounting panel.
Protection against spoofing devices' authentication
Power Supply
Battery 1 × CR123A
Pre-installed.
Type type C
Calculated battery life up to 5 years
Device's nominal operating voltage 3 V⎓
Quiescent device's current consumption at nominal voltage 11.8 μA
Maximum device's current consumption at nominal voltage 24 mA
Full battery capacity 1,600 mAh
Low battery voltage 2.5 V⎓
Low battery recovery voltage 2.7 V⎓
End-of-life battery voltage 2.1 V⎓
Device is switched off.
End-of-life battery capacity 300 mAh
Manufacturer Huiderui
Enclosure
Color Black
Dimension 90 × 20 × 20 mm
Dimensions of the big magnet 90 × 20 × 20 mm
Dimensions of the small magnet 55 × 11 × 6 mm
Weight 29 g
Operating temperature range from −10 °C to +40 °C
Operating humidity up to 75%
Casing protection class IP50
Complete set DoorProtect Plus Jeweler
SmartBracket mounting panel
CR123A battery (pre-installed)
Big magnet
Small magnet
Outside-mounted terminal clamp
Installation kit
Quick start guide
Warranty 24 months
All our products are in conformity with the in force CE normative (read here). To ask for a copy of the certification fill out this form

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