Ajax DoorProtect Plus Black Wireless Opening, Shock & Tilt Detector

Ajax DoorProtect Plus Black - Wireless Opening, Shock & Tilt Detector

The Ajax DoorProtect Plus is a compact wireless sensor built to catch intrusion attempts the moment they happen. Beyond simply detecting when a door or window is opened, it combines a precision reed switch with a built-in accelerometer, so it also picks up shocks, vibration and tilting caused by forced entry, drilling or an attempt to lift a window frame. Designed for indoor use, it links to an Ajax hub over the encrypted Jeweller radio protocol, giving installers a reliable, cable-free way to secure entry points, skylights, cabinets and safes.

Key Features

• Dual detection technology: a hi-end reed switch senses opening while a built-in accelerometer flags shock, impact and tilt.
• Long wireless range: communicates with the hub over Jeweller at distances of up to 1,200 metres line of sight.
• Flexible magnet kit: includes a small magnet (up to 1cm) and a large magnet (up to 2cm) for narrow or wide frame installations.
• Adjustable sensitivity: the shock sensor offers multiple sensitivity levels and can ignore isolated impacts to reduce false alarms.
• Ventilation-friendly monitoring: tilt detection lets a window stay cracked open for airflow while the system remains armed.
• Wired detector input: a terminal accepts a third-party NC (normally closed) wired detector for extra coverage.
• Tamper protection: a built-in tamper switch triggers an alarm if the unit is pried open or removed from its mount.
• Long battery life: runs on a single pre-installed CR123A battery for up to five years, with low-battery alerts sent well in advance.
• Fast, tool-light setup: pairs with the Ajax app in seconds and mounts using the SmartBracket panel.

Where It Fits

DoorProtect Plus is well suited to entry doors, sliding doors, roof windows and any opening that also needs protection against forced tampering. Its shock and tilt sensing makes it a practical choice for safes, display cabinets, storage rooms and retail environments where someone might try to lever, drill or shift an object rather than simply open it. Combined with an Ajax hub, it can also drive the Chime feature, turning a connected siren or keypad into a doorbell that announces entries while the system is disarmed.

What's in the Box

• DoorProtect Plus Jeweller detector (Black)
• SmartBracket mounting panel
• CR123A battery (pre-installed)
• Large magnet
• Small magnet
• Terminal for connecting a third-party wired detector
• Installation kit
• Quick start guide

Frequently Asked Questions

Does DoorProtect Plus work with any Ajax hub?
It pairs with the full range of Ajax hubs and range extenders via the Jeweller radio protocol, giving line-of-sight communication up to 1,200 metres.

Can it be used on a window left open for ventilation?
Yes. Its accelerometer measures tilt angle, so the system can be armed while a window is propped open for airflow, and will still alert on excessive movement or forced entry.

How long does the battery last?
The pre-installed CR123A battery is rated for up to five years of typical use, with the Ajax app providing advance low-battery notifications.

Additional Resources

• More info