Ajax DoorProtect Plus White
Ajax DoorProtect Plus White – magnetic contact with shock and tilt sensors
Ajax DoorProtect Plus Jeweller is a wireless opening detector that combines a magnetic contact with an accelerometer for shock and tilt detection. It can detect opening, impacts and vibrations, as well as changes in inclination, providing broader protection than a conventional magnetic contact. It is particularly suitable for doors, windows, skylights, garage doors and other opening structures.
DoorProtect Plus also has an input for a wired detector with a normally closed (NC) contact, allowing an existing wired sensor to be integrated into the Ajax system through the same device.
Benefits
- Reed contact and accelerometer in one device—opening, shock and tilt detection
- Two magnets included for detection distances up to 1 cm and 2 cm
- Three adjustable sensitivity levels for the shock sensor
- Input for a wired detector with an NC contact
- Jeweller radio range up to 1,200 metres in open space
- Pre-installed CR123A battery with a life of up to 5 years
Several protection functions in one device
DoorProtect Plus Jeweller combines several security functions in a single detector.
Functions:
- Magnetic contact (reed contact) for doors and windows
- Accelerometer used as a shock sensor
- Accelerometer used as a tilt sensor
- External input for a wired NC detector
- Temperature value displayed in the Ajax app
This provides comprehensive protection without requiring several separate devices.
Monitors doors and windows
The magnetic contact detects when a door or window is opened.
Two magnets are included:
- Small magnet—works at a distance of up to 1 cm from the detector
- Large magnet—works at a distance of up to 2 cm from the detector
This makes installation flexible for different types of doors and windows.
Built-in shock sensor
The accelerometer detects impacts, shocks and vibrations and can therefore trigger an alarm before a door or window is actually opened.
The sensitivity can be set to three levels:
- Low—where known sources of false alarms exist in the protected area
- Normal—the default setting suitable for most installations
- High—where no sources of interference exist in the protected area
This provides additional protection for vulnerable entrances and windows.
Tilt sensor for skylights and garage doors
DoorProtect Plus Jeweller triggers an alarm when the device's inclination changes by more than 5°.
Functions:
- Alarm if the tilt deviates by more than 5°
- Adjustable alarm delay from 1 second to 1 minute
- The tilt sensor can be disabled in the app when it is not required
- Suitable for skylights, ventilation windows and garage doors
This makes the sensor useful on openings where a magnetic contact alone is insufficient.
External input for wired sensors
The device has a terminal for connecting a wired detector with a normally closed (NC) contact.
This makes it possible to:
- Integrate an existing wired sensor into the Ajax system
- Monitor an additional point without adding another wireless device
- Retain working equipment during an upgrade
This provides greater flexibility in both new and existing installations.
Temperature value in the app
DoorProtect Plus measures the processor temperature and displays the value in the Ajax app. The permitted difference between the app value and the room temperature is 2 °C.
This provides:
- Device status information directly in the app
- Input for automation scenarios
- An updated value when the temperature changes by at least 2 °C
Stable wireless communication
Ajax Jeweller technology provides fast, encrypted communication with the hub.
- Range up to 1,200 metres in open space
- Encrypted two-way communication
- GFSK modulation with ERP up to 20 mW
- Tamper switch that triggers an alarm if the device is opened or removed
Walls, floors and other obstacles in the signal path reduce the range.
Important to know
- The enclosure rating is IP50. The detector is intended for indoor installation in a dry environment.
- The approved operating temperature is −10 °C to +40 °C, with humidity up to 75%.
- DoorProtect Plus Jeweller is not compatible with the ocBridge Plus and uartBridge integration modules—it requires an Ajax hub.
Technical specifications
| Product type | Wireless opening detector with shock and tilt sensors |
| Brand | Ajax Systems |
| Model / item number | DoorProtect Plus Jeweller / 38101.13.WH1 |
| Colour | White |
| Sensors | 1 × reed contact, 1 × accelerometer |
| Detection | Opening, impacts and vibrations, and inclination |
| Magnet distance | Up to 1 cm (small magnet), up to 2 cm (large magnet) |
| Shock sensitivity | 3 levels (low, normal and high) |
| Tilt alarm | Deviation over 5°, delay from 1 s to 1 min |
| External input | Wired detector with NC contact |
| Temperature value | Measured at the processor and displayed in the app (2 °C tolerance) |
| Radio protocol | Jeweller, two-way communication |
| Frequency band | 868 MHz band (frequency varies by region) |
| Radio range | Up to 1,200 m in open space |
| Modulation / output power | GFSK, ERP up to 20 mW |
| Battery | 1 × CR123A, 3 V (pre-installed) |
| Battery life | Up to 5 years |
| Dimensions | 20 × 90 mm |
| Weight | 29 g |
| Operating temperature | −10 °C to +40 °C |
| Humidity | Up to 75% |
| Enclosure rating | IP50 |
| Certification | EN 50131 series, security grade 2 |
| Warranty | 24 months |
Complete the system with
- Ajax Hub 2 Plus—hub with four communication channels
- Ajax MotionProtect Jeweller—motion detector for additional protection inside the door
- Ajax GlassProtect Jeweller—glass-break detector for glazed sections
- Ajax HomeSiren Jeweller—wireless indoor siren
- Ajax ReX 2—range extender for larger properties
- Installation and commissioning by PC & HiFi Örebro
Why choose Ajax DoorProtect Plus
- Three protection functions in one device—opening, shock and tilt—provide earlier warning than a basic magnetic contact
- The shock sensor triggers during the break-in attempt, before the door or window has opened
- The tilt sensor provides a solution for skylights and garage doors where magnetic contacts are difficult to install
- The wired NC input allows existing equipment to be retained during an upgrade
PC & HiFi Örebro recommends
We recommend DoorProtect Plus for the most vulnerable openings: entrance doors, patio doors, basement windows and garage doors. Its main advantage is that the shock and tilt sensors can trigger an alarm during the break-in attempt rather than only after the door has opened. Standard Ajax DoorProtect is sufficient for internal doors and windows where only opening needs to be monitored, and it also provides longer battery life. The IP50 enclosure is intended for dry indoor installation, and the detector requires an Ajax hub—it does not work through ocBridge Plus or uartBridge.