The Ajax MotionProtect Plus (W) is a high-performance wireless indoor motion detector designed for environments with complex thermal interference. The "(W)" indicates the White finish. Unlike standard PIR sensors, the "Plus" model utilizes dual-technology detection—combining a Passive Infrared (PIR) sensor with a K-band microwave sensor—to virtually eliminate false alarms caused by air conditioners, fireplaces, or drafts.
Key Features
Dual-Verification Technology: The PIR sensor detects heat signatures, while the microwave sensor performs an RF scan to confirm the movement. An alarm is only triggered when both sensors agree.
Thermal Interference Filtering: Specifically engineered for rooms with active air conditioning, heating vents, or flickering sunlight that might confuse a standard detector.
Pet Immunity: Intelligently ignores pets weighing up to 20 kg and standing up to 50 cm tall.
Jeweller Radio Protocol: Features a massive communication range of up to 1,200 meters (open space) from the Ajax Hub, using encrypted two-way communication.
Long Battery Life: Comes with a pre-installed CR123A battery that lasts up to 5 years.
Technical Specifications
| Feature | Specification |
| Sensing Element | PIR sensor + K-band Microwave (24 GHz) |
| Detection Distance | Up to 12 meters |
| Detection Angles | Horizontal: 88.5° / Vertical: 80° |
| Recommended Height | 2.4 meters |
| Sensitivity | Adjustable (3 levels) |
| Protection Class | IP50 |
| Dimensions | 110 × 65 × 50 mm |
| Compatibility | All Ajax Hubs & Range Extenders |
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