Ajax Wireless magnetic door contact

Ajax Wireless magnetic door contact

  • Operates up to 7 years without battery replacement;
  • External contact is available for connecting third-party detectors;
  • Includes magnets of various sizes for installation on narrow frames and door frames;
  • Authentication to prevent forgery;
  • Jamming detection and communication channels encryption;
  • Tampering alarm


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.

Installation and set up

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.



Ajax Systems

Product Type

Intrusion protection

Tech Specs

Classification Point magnetic and contact radio channel security detector
Type Of Detector Wireless
Installation Method Indoors
Compatibility Operates with Hub, Hub Plus, ocBridge Plus, uartBridge
Sensing Element Reed switch
Alarm Signal Delivery Time 0.15 s
Activation Threshold Small magnet — 1 cm
Big magnet — 2 cm
Power Supply Battery: CR123A battery
Power supply voltage: 3 V
Battery life — up to 7 years
Jeweller Radio Technology Communication 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
Temperature Sensor Available
Operating Temperature Range -10°С to +40°С
Permissible Humidity Up to 75%
Anti-Sabotage Protection against fraud
Jamming detection
Remote Setting And Testing +
Dimensions Diameter: 20 mm
Height: 90 mm
Weight 29 g
Certification DSTU EN 50131, Conforms to the requirements of the technical regulations governing radio equipment
Warranty Replacement and repair within 24 months of the date of sale. Batteries are not covered under warranty.
Complete Set DoorProtect opening detector
Two magnets
CR123A battery (pre-installed)
External contact
Installation set
User’s guide