DoorProtect Ajax Systems

69  excl VAT

Wireless opening detector that notifies of first signs of room intrusion by means of a broken door or window. It can be mounted on all types of doors including a metal base.

  • Authentication to prevent forgery
  • Jamming detection and communication channels encryption
  • Tampering alarm

Principle of operation

The device detects the door or window being opened by means of British-made hi-end reed switches on which the magnetic field acts. It can operate in the transmitter mode, sending a signal from the wired sensor to the hub.


The device consists of two modules — detector and magnet. The set includes two magnets: the big magnet is installed at a distance of up to 2 cm, and the small magnet up to 1 cm.


Ready to operate straight out the box: the battery is already installed, therefore there is no need to disassemble the detector. With one click, it can be connected to the hub in the mobile application. It can be mounted on the SmartBracket in just a few minutes.


ClassificationPoint magnetic and contact radio channel security detector
Type of detectorWireless
Installation methodIndoors
CompatibilityOperates with all Ajax hubs, range extenders, ocBridge Plus, uartBridge
Sensing elementReed switch
Alarm signal delivery time0.15 s
Activation threshold
Small magnet — 1 cm
Big magnet — 2 cm
Power supplyBattery: CR123A battery, 3 V
Battery lifeUp to 7 years
Learn more
Jeweller radio technologyCommunication range with central unit — up to 1,200 m in an open space
Two-way communication between devices
Operating frequencies — 868.0-868.6 MHz
Self-adjusting RF output power — up to 20 mW
Block encryption based on AES algorithm
Detector polling period — 12−300 s
Learn more
Temperature sensorAvailable
Operating temperature range
From -10°С to +40°С
Permissible humidity
Up to 75%
Anti-sabotageProtection against fraud
Jamming detection
Remote setting and testing+
DimensionsDiameter: 20 mm
Height: 90 mm
Weight29 g
Replacement and repair within 24 months of the date of sale. Batteries are not covered under warranty.
Complete set
Replacement and repair within 24 months of the date of sale. Batteries are not covered under warranty.
Complete set
DoorProtect opening detector
SmartBracket mounting panel
Two magnets
CR123A battery (pre-installed)
External contact
Installation set
User's guide
Service life
10 years


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