Description
Ajax AJ-MOTIONPROTECT-G3-W - Ajax MotionProtect G3-W Grade 3 detector. Professional PIR sensor for high-security installations.
The Ajax MotionProtect G3-W Grade 3 is a wireless motion detector certified for security systems that require the highest level of protection. It is designed to meet professional standards in critical installations.
What is Grade 3 designed for?
Grade 3 devices are intended for environments with a high risk of intrusion, where a superior level of security is required:
Banks and financial institutions
Jewellers
Public administration buildings
Critical infrastructure
Companies with high-value assets
This level requires:
Greater resistance to tampering
More precise detection
Anti-masking systems (depending on configuration)
Constant device supervision
✔️ Smart, precise detection
Thanks to its advanced PIR sensor, the MotionProtect G3-W detects human movement with great reliability, minimising false alarms.
✔️ Secure wireless technology
It works over the Jeweller protocol, offering:
Encrypted communication
Long range
Low latency
High stability
✔️ Professional installation
Designed for integrators, it allows fast installation without wiring while maintaining demanding security standards.
What are the main features of the Ajax MotionProtect G3-W Grade 3 white motion detector?
Ajax Superior
Volumetric PIR detector
Grade 3 certified
Two-way communication
Wireless 868 MHz Superior Jeweller
Internal antenna, open-air range 3000 m
Anti-masking sensor
Motion detection indicator
Detection: range 15 m / H: 90° / V: 71°
Anti-opening tamper
Powered by 4 CR123A 3.0 V Panasonic batteries (estimated life 7 years)
Indoor use
Includes bracket with fixing screw
White
What are the technical specifications of the Ajax MotionProtect G3-W Grade 3 motion sensor?
Brand: Ajax
Range: Superior
Security grade: Grade 3
Communication protocols: 868 MHz Superior Jeweller
Transmission distance: ≤ 3000 m in open air
Compatibility with control panels and range extenders: Check compatibility under 'Downloads -- Manuals -- Ajax device / control panel compatibility table'
Firmware updates: Not available
General features
Technology: Volumetric PIR
Detection field: 15 m / H: 90° / V: 71°
Recommended installation height: 2.4 metres
Sensitivity: Adjustable. 3 levels (low, medium and high)
Minimum blind zone: Detection from 0.5 m from the detector
Detection speed: From 0.1 to 4.0 m/s
False alarm prevention: SmartDetect software algorithm
Temperature compensation: -10 °C ~ +40 °C
Sensor self-test: The device checks the status of its sensors and reports any malfunction detected
Pet immunity: Not available
Tamper protection
Anti-masking: Available. Detects attempts to block the detector's field of view
Tamper protection:
2 anti-opening tampers
1 bottom tamper (SmartBracket)
Bracket lock: Available. For the SmartBracket mounting panel
Power supply
Power supply: 4 CR123A 3.0 V Panasonic batteries
Battery life: Up to 7 years
Housing
Operating temperature: -10 °C ~ +40 °C
Operating humidity: Up to 75%
Protection rating: IP30
Dimensions: 135 (H) x 66 (W) x 60 (D) mm
Colour: White
Weight: 308 g




