Description
Ajax 42827.02.BL3 MotionProtect Plus (9NA) UPC black
Product Details
MotionProtect Plus Jeweller is a wireless IR motion detector with an additional K-band microwave sensor that activates only when the PIR sensor is triggered. The two technologies confirm each other, which is what keeps detection accurate in rooms with complex thermal interference — air conditioners, fireplaces, heaters and sunlit surfaces.
Motion is detected at up to 39 ft with an 88.5° horizontal angle, at movement speeds from 1 to 6.6 ft/s, across three adjustable sensitivity levels. Pet immunity covers animals up to 44 lb in weight and 1.6 ft in height. The pre-installed CR123A battery gives up to 5 years of operation, and Jeweller radio reaches up to 3,900 ft in open space.
The K-band (24 GHz) microwave sensor is more energy-efficient and more precise than the X-band sensors used in comparable detectors, which is why the added confirmation stage costs so little battery life. The SmartBracket panel lets an installer mount the device on the wall without disassembling the enclosure, and the detector pairs with the hub by scanning a QR code. Correct installation at a height of 2.4 m with the lens perpendicular to the likely intrusion path is what delivers the stated detection pattern and pet immunity. It can be reconfigured remotely from the Ajax apps without a site visit. Supplied in the black finish. The same device in white is stocked as 42828.02.WH3.
Features
- Wireless IR motion detector with additional K-band microwave sensor
- Dual detection: the microwave sensor confirms every PIR trigger
- Built for rooms with air conditioners, fireplaces and other thermal interference
- Motion detection distance: up to 39 ft at 7.9 ft installation height
- Horizontal detection angle: 88.5°
- Pet immunity: animals up to 44 lb and below 1.6 ft in height
- SmartDetect software algorithm filters thermal interference
- Temperature compensation from 14 °F to 104 °F
- 3 adjustable sensitivity levels
- Up to 5 years on the pre-installed CR123A battery
- Up to 3,900 ft radio range with an Ajax hub or range extender
- Jeweller encrypted two-way radio with frequency hopping
- Tamper alarm and device authentication against spoofing
- SmartBracket mounting panel — no enclosure disassembly
- Available in white and black glossy finishes
Specifications
| Technical | |
|---|---|
| Sensitive Element | PIR sensor and K-band microwave sensor (24 GHz) |
| Motion Detection Distance | Up to 39 ft (at 7.9 ft installation height) |
| Motion Detection Angle | Horizontal: 88.5° |
| Motion Detection Speed | From 1 to 6.6 ft/s |
| Sensitivity | 3 levels, adjustable |
| Pet Immunity | Weight up to 44 lb, height up to 1.6 ft |
| False Alarm Prevention | SmartDetect software algorithm |
| Temperature Compensation | 14 °F to 104 °F |
| Communication Technology | Jeweller — proprietary two-way wireless protocol for commands, alarms and events |
| Frequency Bands | 866.0–866.5 MHz | 868.0–868.6 MHz | 868.7–869.2 MHz | 905.0–926.5 MHz | 915.85–926.5 MHz | 921.0–922.0 MHz (region-dependent) |
| Maximum Effective Radiated Power (ERP) | Up to 20 mW |
| Radio Signal Modulation | GFSK |
| Radio Communication Range | Up to 3,900 ft (open space) |
| Encrypted Communication | Block encryption with dynamic key |
| Frequency Hopping | Yes, to prevent radio interference and jamming |
| Tamper Alarm | Notifications on detachment or removal attempts |
| Protection Against Spoofing | Device authentication at each communication session |
| Communication Loss Detection | After 36 s (3 data packages in 12 seconds) |
| Physical | |
|---|---|
| Battery | 1 × CR123A (pre-installed), type C |
| Battery Manufacturer | Huiderui or Panasonic (UL listed) |
| Operating Voltage | 2.1–3.3 V DC | Nominal: 3 V DC |
| Current Consumption | Quiescent: 31 μA | Maximum: 62 mA |
| Full Battery Capacity | 1,600 mAh |
| Low / End-of-Life Battery Voltage | 2.5 V DC / 2.1 V DC |
| Calculated Battery Life | Up to 5 years |
| Dimensions | 4.33" × 2.56" × 1.97" |
| Weight | 3.39 oz |
| Operating Temperature Range | 14 °F to 104 °F |
| Operating Humidity | Up to 75% |
| Protection Class | IP50 |
| Colors | White, Black |
| Complete Set | MotionProtect Plus Jeweller, SmartBracket mounting panel, CR123A battery (pre-installed), installation kit, quick start guide |
| Warranty | 24 months |
Specifications subject to change.
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