Tech specs

DoorProtect U Jeweller

Wireless reed-switch opening detector

Device compatibility

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Communication

Jeweller communication technology

Proprietary wireless communication technology to transmit commands, alarms, and events.

Key features:

Two-way communication.
Advanced sabotage protection.
Block encryption featuring a dynamic key.
Instant notifications.
Remote configuration in the Ajax apps.

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Frequency bands

868.0–868.6 MHz

Maximum effective radiated power (ERP)

up to 20 mW

Automatic power control to reduce power consumption and noise interference.

Radio signal modulation

GFSK

Radio signal range

up to 1,200 m

Between detector and control panel (or range extender) in an open space.

Calculate the radio signal range at the facility

Encrypted communication

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

Frequency hopping

Radio communication uses frequency hopping to prevent interception and jamming.

Learn more

Detection

Sensitive elements

2 reed switches

The magnet can be installed to the left or right side of the detector.

Magnets

small and big one come in the set

The small magnet operates at a distance of up to 1 cm from the detector, and the big magnet — up to 2 cm.

Protection against reed switch chattering

The detector ignores vibrations lasting up to 0.15 s.

Input to connect an additional detector

Wired detector with the normally closed (NC) contact type.

How to connect a third-party wired detector

Chime

The siren makes a special sound to notify that the opening detectors are triggered when the system is disarmed.

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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 — left or right.

The device is designed for indoor use only.

Sabotage protection

Tamper alarm

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

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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 or Jeweller/Fibra settings.

Learn more

Power supply

Battery

1 × CR123A

Pre-installed.

Type

Type C

Calculated battery life

up to 7 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

0.013 mA

Maximum detector’s current consumption at nominal voltage

10.5 mA

Full 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

Enclosure

Detector dimensions

103 × 22 × 21 mm

Dimensions of the big magnet

103 × 22 × 21 mm

Dimensions of the small magnet

55 × 11 × 6 mm

Weight of the white detector

37 g

Weight of the black detector

34 g

Operating temperature range

from -10 °C to +40 °C

Operating humidity

up to 75%

Protection class

IP50, IK04

Color

Black

White

Complete set

DoorProtect U Jeweller

SmartBracket mounting panel with holding screw

CR123A battery (pre-installed)

Big magnet

Small magnet

Outside-mounted terminal clamp

Installation kit

Quick start guide

Certification and compliance with standards