The Ajax MotionProtect U Jeweller White is a wireless indoor PIR motion detector designed to provide reliable intrusion detection with minimal false alarms. Featuring SmartDetect false alarm prevention, pet immunity, encrypted Jeweller communication and up to five years of battery life, it is suitable for residential and small commercial Ajax security systems.
Ajax MotionProtect U Jeweller White Wireless Indoor PIR Motion Detector
The Ajax MotionProtect U Jeweller is a wireless indoor motion detector developed for dependable intrusion detection in residential and commercial security systems. Using a passive infrared (PIR) sensor combined with SmartDetect digital signal processing, it is designed to recognise human movement while helping to minimise false alarms caused by pets or common environmental changes.
This detector (article 121295.09.WH1) communicates securely with compatible Ajax hubs using Jeweller encrypted radio technology, providing dependable wireless communication and rapid alarm transmission.
Reliable Indoor Motion Detection
The detector monitors indoor areas using a PIR sensor with a detection range of up to 12 metres when installed at the recommended height of 2.4 metres, making it suitable for protecting hallways, living areas, offices, retail spaces and other internal rooms.
With a horizontal viewing angle of 88.5° and a vertical viewing angle of 80°, the detector provides effective room coverage when installed according to Ajax recommendations, with a detection speed of 0.3 to 2 m/s.
SmartDetect False Alarm Prevention
The MotionProtect U Jeweller uses SmartDetect digital signal processing to analyse movement patterns and improve detection accuracy. This technology helps distinguish genuine human movement from common sources of false alarms, supporting dependable operation in everyday environments. Sensitivity can be adjusted across 3 levels by a PRO or user with admin rights in the Ajax app.
Pet Immunity
When installed correctly, the detector is designed to ignore pets weighing up to 20 kg and measuring up to 50 cm in height. This allows the system to remain armed while many household pets move freely throughout protected areas, helping reduce unnecessary alarm activations.
Jeweller Wireless Communication
The detector communicates with the hub using Ajax's proprietary Jeweller radio protocol. Jeweller provides:
- Encrypted two-way communication
- Device authentication
- Frequency hopping protection
- Automatic polling
- Anti-jamming detection
- Communication range up to 1,700 metres in open space
This helps ensure stable communication between the detector and the control panel under suitable installation conditions.
Long Battery Life
The detector is powered by a pre-installed CR123A lithium battery, providing up to five years of operation under normal conditions before replacement is typically required, helping reduce ongoing maintenance.
Quick Professional Installation
The included SmartBracket mounting panel enables straightforward installation without needing to disassemble the detector. A built-in tamper switch helps detect unauthorised removal from the mounting surface, adding an additional layer of protection.
Designed for Ajax Security Systems
The MotionProtect U Jeweller is intended for use with compatible Ajax security systems in residential, commercial and office environments. Its reliable motion detection, encrypted communication and long battery life make it well suited to everyday wireless alarm installations.
KEY BENEFITS
- Accurate indoor PIR motion detection up to 12 metres
- SmartDetect technology helps reduce false alarms
- Pet immunity supports animals up to 20kg and 50cm tall
- Encrypted Jeweller wireless communication
- Wireless range up to 1,700m in open space
- Up to five years of battery life
- Built-in tamper protection
- SmartBracket simplifies installation
- Suitable for residential and commercial security systems
- Designed for everyday Ajax installations
KEY FEATURES
- Wireless PIR motion detector
- Passive infrared sensor
- Detection range up to 12m
- SmartDetect technology
- Pet immunity
- Jeweller wireless technology
- Up to 1,700m communication range
- CR123A battery included
- Battery life up to 5 years
- SmartBracket mounting panel
- Tamper protection
- IP50 rated
- Indoor installation
- White finish
IDEAL FOR
- Homes
- Apartments
- Offices
- Retail shops
- Commercial premises
- Reception areas
- Hallways
- Warehouses
- Ajax security systems
- Indoor intrusion detection
SYSTEM COMPATIBILITY
- Compatible with Ajax Hub Plus
- Compatible with Ajax Hub 2
- Compatible with Ajax Hub 2 (2G)
- Compatible with Ajax Hub 2 (4G)
- Compatible with Ajax Hub 2 Plus
- Compatible with Ajax Hub Hybrid (2G)
- Compatible with Ajax Hub Hybrid (4G)
- Compatible with Ajax ReX Jeweller
- Compatible with Ajax ReX 2 Jeweller
- Uses Ajax Jeweller encrypted wireless communication
- Managed via Ajax mobile applications (iOS and Android)
- Managed via Ajax desktop applications (Windows and macOS)
- Supports Ajax Cloud remote management
- Supports Over-the-Air (OTA) firmware updates
| Specification |
Details |
| Brand |
Ajax |
| Model |
MotionProtect U Jeweller |
| Article Number |
121295.09.WH1 |
| Product Type |
Wireless Indoor PIR Motion Detector |
| Detection Technology |
Passive Infrared (PIR) |
| Motion Detection Range |
Up to 12 m (installed at 2.4 m height) |
| Detection Angles |
Horizontal 88.5°, Vertical 80° |
| Detection Speed |
0.3 to 2 m/s |
| Pet Immunity |
Up to 20 kg / 50 cm |
| False Alarm Prevention |
SmartDetect |
| Sensitivity Levels |
3 (adjustable in Ajax app) |
| Wireless Technology |
Jeweller |
| Radio Communication Range |
Up to 1,700 m (open space) |
| Tamper Protection |
Yes |
| Power Supply |
1 × CR123A Lithium Battery (Pre-installed) |
| Battery Life |
Up to 5 Years |
| Protection Rating |
IP50 |
| Operating Temperature |
-10°C to +40°C |
| Operating Humidity |
Up to 75% Non-condensing |
| Colour |
White |
| Mounting |
SmartBracket Mounting Panel |
| Dimensions |
Approx. 110 × 65 × 50 mm |
| Weight |
Approx. 86 g |
| Indoor / Outdoor |
Indoor Use Only |
| Warranty |
Not specified |
FREQUENTLY ASKED QUESTIONS (FAQs)
What is the Ajax MotionProtect U Jeweller used for?
It is a wireless indoor PIR motion detector designed to detect unauthorised movement inside protected areas, suitable for residential, commercial and office security systems using compatible Ajax hubs.
Is this detector suitable for outdoor installation?
No. The MotionProtect U Jeweller is designed for indoor use only and carries an IP50 protection rating.
What is the maximum detection range?
The detector can identify movement at distances of up to 12 metres when installed according to Ajax recommendations.
Does it ignore pets?
Yes. The detector features pet immunity, helping to ignore animals weighing up to 20 kg and measuring up to 50 cm in height when correctly installed.
What technology helps reduce false alarms?
Ajax uses SmartDetect digital signal processing to analyse movement and reduce false alarms caused by common environmental factors.
How does the detector communicate with the hub?
It uses Jeweller, Ajax's encrypted wireless communication protocol, offering secure two-way communication with a wireless range of up to 1,700 metres in open space.
Does it support photo verification?
No. The MotionProtect U Jeweller does not include a camera. If photo verification is required, choose a compatible MotionCam model instead.
How is the detector powered?
The detector operates from a pre-installed CR123A lithium battery, providing up to five years of battery life under normal operating conditions.
Does it include tamper protection?
Yes. The detector features a built-in tamper switch that notifies the system if the device is removed from its mounting surface.
