Tech specs

CombiProtect Jeweller

Wireless IR motion and glass break detector with microphone

CombiProtect Jeweller

Devices compatibility

Devices compatibility


Jeweller 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 control and configuration in Ajax apps.

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

Depends on the sales region.

Maximum effective radiated power (ERP)

up to 20 mW

Automatic power control to reduce power consumption and radio interference.

Radio signal modulation


Radio communication range

up to 3,900 ft

Between the device and a hub (or a range extender) in an open space.

Encrypted communication

All stored and transmitted data are protected by block encryption featuring a dynamic key.

Frequency hopping

To prevent radio interference and jamming.


Sensitive element

PIR sensor

Motion detection distance

up to 39 ft

When installed at the height of 7.9 ft.

Motion detection angle

horizontal: 88.5°

Motion detection speed

from 1 to 6.6 ft/s

The direction of the detector lens should be perpendicular to an alleged intrusion path into the facility.


3 levels

Adjusted by a PRO or a user with admin rights in the Ajax app.

Pet immunity

weight: up to 44 lb

height: up to 1.6 ft

False alarm prevention


Software algorithm.

Temperature compensation

Effective motion detection at temperatures from 14 °F to 104 °F.


It is recommended to install the detector at a height of 7.9 ft.

The device is designed for indoor use only.

Glass break detection

Sensitive element

electret microphone

Glass break detection distance

from 1 to 30 ft

Glass break detection angles

horizontal: 180°


3 levels

Adjusted by a PRO or a user with admin rights in the Ajax app.

False alarm prevention


Two-factor software algorithm for glass break verification by low and high sound frequencies.

Glass break characteristics

Minimum glass size

11″ × 11″

Detection distance is up to 30 ft or all glass types when the High sensitivity level is selected.

Glass types and their thickness:

  • standard pane — ⅛" and ⅜"
  • tempered glass — ⅛" and ⅜"
  • laminated glass — ⅛" and ½"
  • wired glass — ¼"
  • insulated glass — ⅛" and ¼"
  • annealed glass — ¹⁄16"


The device will not detect glass breaking if the glass is covered with shockproof, sunscreen, decorative, or any other film.

Sabotage protection

Tamper alarm

Notifications on attempts to detach the device from the surface or remove it from the mounting panel.

Protection against spoofing

device authentication

Communication loss detection

after 36 s

Detection time depends on the Jeweller or Jeweller/Fibra settings.

Power supply


1 × CR123A



type C

Calculated battery life

up to 5 years

Detector’s operating voltage range

2.1−3.3 V⎓

Detector’s nominal operating voltage

3 V⎓

Quiescent detector’s current consumption at nominal voltage

38 μA

Maximum detector’s current consumption at nominal voltage

60 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


Huiderui or Duracell



4.33″ × 2.56″ × 1.97″


3.25 oz

Operating temperature range

from 14 °F to 104 °F

Operating humidity

up to 75%

Protection class





Complete set

CombiProtect Jeweller

SmartBracket mounting panel

CR123A battery (pre-installed)

Installation kit

Quick start guide

Additional information

Compliance with standards

Learn more


24 months

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User manual

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