Ajax DoorProtect

R566.00 incl. VAT

Ajax DoorProtect compact size and powerful magnet make Ajax DoorProtect the ideal wireless detector to protect all types of doors and windows.


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Ajax DoorProtect – Wireless Door Contact – includes wired input for 3rd party detectors

The Ajax DoorProtect is a wireless opening detector that notifies you of any unauthorized window or door openings. It can be mounted on all types of doors including a metal base.

The device consists of two modules, a detector, and a magnet. The set includes a big and small magnet for installation on narrow door and window frames.

The sensor comes with a battery and is therefore ready for installation. Scan the QR code on the back of the device with your smartphone and it connects to the hub.

  • Ajax wireless door or window opening detector
  • Separate wired input for 3rd party detectors
  • Uses authentication to protect against fraud
  • Tamper-resistant body
  • Response from detectors can be checked every 12-300 seconds (adjustable)
  • Jamming detection, frequency-hopping
  • Uses an encrypted connection
  • Uses British-made reed switches that can be toggled more than 1,000,000 times without failure
  • Two-way communication with Ajax Hub allows for periodic testing and customization
  • Saves energy by regulating power consumption based on the distance from Ajax Hub
  • Has a battery life of up to 7 years when pinging once per minute
  • No need to disassemble the body when installing using SmartBracket mounts
  • Uses powerful magnets that can be installed up to 2 cm from the main unit
  • The quality of the connection and detection area can be tested remotely
  • Connects to Ajax Hub with a single click
  • Tamper alarm

Additional information

Weight 29 g
Dimensions 20 × 20 × 90 mm

Black, White

Technical Specifications


Point magnetic contact radio channel security detector

Device type


Installation method



Operates with all Ajax hubs, range extenders, ocBridge Plus, uartBridge

Sensing element

Reed switch

Alarm signal delivery time

0.15 sec

Activation threshold

Small magnet – 1cm

Big magnet – 2cm

Power supply

Battery: CR123A battery, 3v

Battery life

Up to 7 years

Learn more

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

Learn more about Jeweller

Temperature sensor


Operating temperature range

from -10°С to +40°С

Operating humidity

Up to 75%


Protection against fraud
Jamming detection

Remote setting and testing



Diameter: 20mm

Height: 90mm




Replacement and repair for a period of 24 months of the date of sale. Batteries are not covered under warranty

Service life

10 Years

Complete set

DoorProtect opening detector
SmartBracket mounting panel
Two magnets
CR123A battery (pre-installed)
External contact
Installation set
User’s guide

DoorProtect User Manual

Ajax Alarm User Guide


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