AJX-DP+

Overview

Ajax DoorProtect Plus Jeweller White Indoor Opening Detector with Shock and Tilt Sensors is designed to detect the earliest signs of intrusion through doors, windows, and roof windows, even when they are left open for ventilation. This wireless opening detector combines magnetic contact detection with shock and tilt sensing to provide reliable indoor security for homes and businesses. With battery powered operation and efficient energy management, it delivers long term performance while maintaining a clean, discreet appearance suitable for modern interiors.

Description

The Ajax DoorProtect Plus Jeweller uses advanced opening, shock, and tilt detection to identify intrusion attempts in real time. It monitors doors and windows for opening, vibration, and changes in angle, making it suitable for standard frames as well as roof windows. Encrypted wireless communication, tamper protection, and long battery life ensure dependable indoor security with minimal maintenance, while support for external wired sensors adds flexibility to existing setups.

Features

Key advantages

• Detects door and window opening using high quality reed switches
• Shock and tilt sensors identify vibration, impacts, and changes in vertical angle
• Suitable for windows left open for ventilation, including roof windows
• Encrypted wireless communication with authentication against signal forgery
• Jamming detection and tamper alerts for added protection
• Battery powered design with up to 5 years of operation
• External contact available for connecting third party wired detectors

How the device works
The detector registers opening events through a magnetic reed switch activated by a nearby magnet. An integrated accelerometer continuously monitors vibration, impacts, and tilt angle changes, triggering an alert if suspicious activity is detected. All events are transmitted securely to the Ajax hub using the Jeweller radio protocol, ensuring fast and stable communication.

Setup and mounting
The device is ready to use straight out of the box with the battery pre installed. Pairing with the hub takes just one tap in the mobile app, allowing quick configuration and testing. Installation is completed in minutes using the SmartBracket mounting panel, with no need to disassemble the detector during setup.

Ideal applications
Ajax DoorProtect Plus Jeweller is well suited for indoor protection of residential properties, offices, and commercial spaces. It provides enhanced security for entry points where standard opening detection alone is not enough, offering reliable monitoring of doors, windows, and roof windows in a single compact device.

Specifications

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Specifications and features
Product Code	AJX-DP+
Compatibility
Hubs	All Ajax hubs
Radio signal range extenders	All Ajax range extenders
Communication
Jeweller communication technology	Proprietary wireless technology to transmit alarms and events.
	Features:
	Two-way communication.
	Advanced anti-sabotage.
	Block encryption featuring a dynamic key.
	Instant notifications.
	Remote configuration via the Ajax apps.
Radio 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
Maximum effective radiated power (ERP)	up to 20 mW
Radio signal modulation	GFSK
Radio communication range	up to 1,200 m
	Between the detector and a hub (or radio signal range extender) in an open space.
	Calculate radio communication range at the facility
Encrypted communication	All the data stored and transmitted are protected by block encryption with a dynamic key.
Frequency hopping	To prevent radio interference and radio signal interception.
Detection
Sensitive elements	1 x accelerometer
	1 x reed switch
	The magnet should be installed to the right of the detector.
Maximum number of openings	up to 2,000,000
	For each reed switch.
Additional detector connection	Third-party wired detector with the NC (normally closed) contact type.
Shock sensitivity	3 levels
	Adjusted by a PRO or user with admin rights in the Ajax app.
Option to ignore single shock	Adjusted by a PRO or user with admin rights in the Ajax app.
Tilt sensor activation threshold	from 5degrees to 25degrees
	Adjusted by a PRO or user with admin rights in the Ajax app.
Recommendations
Recommendations	The magnet is mounted to the right of the detector. It can be placed horizontally.
	Do not install the detector with the LED indicator facing down, as this may cause it to fall and fail due to damage.
	Device is designed for indoor use only.
Anti-sabotage protection
Tamper alarm	Notifications of attempts to tear off the detector from the surface or remove it from the mounting panel.
Protection against spoofing	Device authentication
Power supply
Power supply	1 x CR123A battery
	Up to 5 years of battery life.
Enclosure
Dimensions	Ø 20 x 90 mm
Weight	29 g
Operating temperature range	from -10 degreesC to +40 degreesC
Operating humidity	up to 75%
Protection class	IP50
Colours
Colours	Black
	White
Complete set
Complete set	DoorProtect Plus Jeweller
	SmartBracket mounting panel
	CR123A battery (pre-installed)
	Big magnet
	Small magnet
	Terminal to connect a third-party detector
	Installation kit
	Quick Start Guide