Ajax MotionProtect White
Ajax MotionProtect White – wireless motion detector with pet immunity
Ajax MotionProtect Jeweller is a wireless indoor PIR motion detector that detects unauthorised movement while being able to ignore smaller pets. With an estimated battery life of up to five years, encrypted Jeweller communication and cable-free installation, it is one of the fundamental components of an Ajax alarm system.
The detector has a detection range of up to 12 metres at the recommended mounting height of 2.4 metres and a horizontal detection angle of 88.5°. Sensitivity can be set to three levels, and the SmartDetect algorithm is used to reduce the risk of false alarms.
Benefits
- Detection range up to 12 metres and 88.5° horizontal coverage
- Pet immunity for animals weighing up to 20 kg and measuring up to 50 cm in height
- Jeweller range up to 1,700 metres in open space with encrypted two-way communication
- Estimated battery life up to 5 years from one pre-installed CR123A battery
- Three sensitivity levels and the SmartDetect algorithm to reduce false alarms
- Tamper protection that triggers an alarm if the detector is removed from its wall bracket
Reliable motion detection
MotionProtect uses a passive infrared sensor (PIR) that detects heat changes caused by people moving within the monitored area. Movement speeds from 0.3 to 2 m/s are detected.
The detector can monitor:
- Entrances
- Hallways
- Living rooms
- Offices
- Storage areas
- Retail premises
When movement is detected, the alarm is immediately sent to the Ajax hub for further processing.
Pet immunity
The detector is designed to reduce the risk of false alarms caused by smaller pets.
MotionProtect can ignore:
- Pets weighing up to 20 kg
- Pets measuring up to 50 cm in height
This normally allows cats and smaller dogs to move freely without triggering an alarm, provided that the detector is installed at the recommended height and the animal cannot enter the detection area by climbing on furniture or stairs.
Long range and stable communication
Ajax Jeweller technology provides secure and energy-efficient communication between the detector and the hub.
This provides:
- Range up to 1,700 metres in open space
- Encrypted two-way communication using block encryption and a dynamic key
- Frequency hopping to protect against interference and jamming
- Device authentication to protect against spoofing
- Detection of lost communication after 36 seconds
The long range also allows the detector to be used in larger buildings.
Temperature compensation and temperature value in the app
MotionProtect provides temperature compensation throughout its operating range of −10 °C to +40 °C, allowing reliable detection even when the difference between body temperature and room temperature is small.
This allows the system to:
- Maintain reliable detection at varying room temperatures
- Display the current device temperature in the Ajax app
- Use the temperature value as a condition in automation scenarios
Up to five years of battery life
The energy-efficient design provides long operating time without frequent battery replacement.
This provides:
- Estimated battery life up to 5 years
- One pre-installed CR123A battery with a capacity of 1,600 mAh
- Minimal maintenance costs
A low battery level is clearly displayed in the Ajax system.
Installation tips for the best performance
- Install the detector at a height of 2.4 metres, as recommended by Ajax.
- Position it so that an intruder moves across the detection area rather than directly towards the detector.
- Avoid pointing the detector towards windows, heat sources, air-source heat pumps or radiators, as rapid temperature changes can affect detection.
- Check the signal strength in the Ajax app before permanently securing the SmartBracket mount.
Good to know
- MotionProtect is intended for indoor use. The enclosure rating is IP50 and humidity up to 75% is permitted.
- The detector includes a SmartBracket mount that simplifies both installation and servicing.
- An Ajax hub is required for alarms to be forwarded to the app or an alarm receiving centre.
Compatibility
MotionProtect Jeweller is compatible with:
- Ajax Hub
- Ajax Hub Plus
- Ajax Hub 2
- Ajax Hub 2 Plus
- Ajax Hub Hybrid
- Ajax ReX
- Ajax ReX 2
- Ajax ocBridge Plus
- Ajax uartBridge
Technical specifications
| Product type | Wireless indoor PIR motion detector |
| Brand | Ajax Systems |
| Model / item number | MotionProtect Jeweller / 38193.09.WH1 |
| Colour | White |
| Sensor type | PIR (passive infrared) |
| Detection range | Up to 12 m |
| Horizontal detection angle | 88.5° |
| Detected movement speed | 0.3–2 m/s |
| Sensitivity | 3 levels |
| False-alarm protection | SmartDetect algorithm |
| Pet immunity | Up to 20 kg and 50 cm in height |
| Temperature compensation | −10 °C to +40 °C |
| Radio protocol | Jeweller, GFSK, ERP up to 20 mW |
| Radio range | Up to 1,700 m in open space |
| Tamper protection | Tamper alarm on removal, device authentication, communication loss detected after 36 s |
| Battery type | 1 × CR123A, 3 V, 1,600 mAh (pre-installed) |
| Battery life | Estimated up to 5 years |
| Recommended mounting height | 2.4 m |
| Dimensions (H × W × D) | 110 × 65 × 50 mm |
| Weight | 86 g |
| Operating temperature | −10 °C to +40 °C |
| Humidity | Up to 75% |
| Enclosure rating | IP50 |
| Certifications and standards | EN 50131 series security grade 2, UL 639, SSF 1014v5 |
| Warranty | 24 months |
Complete the system with
- Ajax Hub 2 Plus – hub required for alarms to reach the app and alarm receiving centre
- Ajax DoorProtect Jeweller – magnetic contact that complements motion detection with perimeter protection
- Ajax HomeSiren Jeweller – indoor siren providing audible and visual alarm indication
- A spare CR123A battery for future replacement
- Installation and adjustment of detector positioning by PC & HiFi Örebro
Why choose Ajax MotionProtect
- Up to 12 metres of detection range and 88.5° coverage is sufficient for most rooms in homes and offices
- Pet immunity up to 20 kg means cats and smaller dogs do not need to be confined while the alarm is armed
- Up to 5 years of battery life and wireless installation provide very low maintenance requirements
- Encrypted Jeweller communication with frequency hopping and tamper protection, certified to EN 50131 grade 2
PC & HiFi Örebro recommends
MotionProtect is our standard choice for indoor motion detection in houses, apartments, offices and shops. Its main strength is the combination of pet immunity and long battery life, making it easy to live with every day. An Ajax detector with a built-in camera is a better choice when photo verification is required, while outdoor monitoring requires an outdoor-rated model because MotionProtect's IP50 enclosure is intended only for indoor use.