- Frequency Jeweller
MotionProtect Plus Jeweller PIR & Microwave Motion Detector, White
SKU AJ-42828
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A PIR with a K-band microwave sensor alongside it. Both technologies have to agree before an alarm is raised, which is the standard answer to a site that generates false alarms a plain PIR cannot filter out.
Built for the installer
Reach for this where the environment is the problem rather than the detector: rooms with heaters or air conditioning blowing across the field of view, conservatories and glazed areas with rapid sunlight changes, or anywhere a warehouse door opens onto cold air. A PIR sees those as moving heat. The microwave sensor does not, so the combination stays quiet.
Otherwise it matches the standard MotionProtect: 39 feet at 88.5 degrees, pet immunity to 44 pounds, SmartDetect and temperature compensation, up to five years on the battery.
Key features
- Dual technology, PIR plus K-band microwave, both must agree before an alarm is raised
- Solves environmental false alarms from HVAC airflow, sunlight and opening doors
- Pet immunity to 44 lb and 1.6 ft, same as the standard MotionProtect
- Up to 5 years battery life on the pre-installed CR123A
- Three sensitivity levels adjustable remotely in the app
System requirements
Requires an Ajax hub or range extender. Indoor use only. Recommended mounting height is 7.9 ft.
Specifications
| SKU | AJ-42828 |
|---|---|
| Brand | AJAX |
| Radio communication range | Up to 3,900 ft in open space, between the device and a hub or range extender |
| Sensitive elements | PIR sensor and K-band microwave sensor |
| Motion detection distance | Up to 39 ft when installed at 7.9 ft |
| Detection angle | Horizontal 88.5 degrees |
| Detection speed | From 1 to 6.6 ft/s |
| Sensitivity | 3 levels, adjustable in the Ajax app |
| Pet immunity | Up to 44 lb weight and up to 1.6 ft height |
| False alarm filtering | SmartDetect software algorithm with temperature compensation |
| Sabotage protection | Tamper alarm on enclosure opening or removal from the mounting panel |
| Use environment | Indoor use only |
| Power input | 1 x CR123A, pre-installed |
| Battery life | Up to 5 years |
| Dimensions | 4.33 x 2.56 x 1.97 in |
| Device weight | 3.39 oz |
| Operating temp | 14F to 104F |
| Operating humidity | Up to 75%. UL/ULC certified to 93% |
| Protection class | IP50 |
| Colour | White |
| Region | 9NA, North America model |
| Radio protocol | Jeweller, two-way encrypted wireless |
| Frequency band (North America) | 905.0-926.5 MHz, certified to UL/ULC standards |
| Radio modulation | GFSK with frequency hopping |
| Encryption | Block encryption with a dynamic key |
| Communication loss detection | After 36 seconds |
| Anti-spoofing | Device authentication |
| Warranty | 24 months |
| Frequency | Jeweller |
