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AJAX DOORPROTECT PLUS MAGNETIC CONTACT WHITE.42800.13.WH3.
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Ajax DoorProtect Plus Jeweller — Wireless Opening, Shock & Tilt Detector (White) 28269.13.WH3
The Ajax DoorProtect Plus Jeweller is a pro-grade wireless door and window sensor that combines a reed-switch contact with built-in shock and tilt detection. It delivers instant, reliable alarms over Ajax’s secure Jeweller protocol with frequency hopping and dynamic key encryption. With up to 1,200 m radio range (open space) and a 5-year battery life, it’s ideal for fast, discreet protection of doors, windows, skylights, and hatches—without wiring.
Key Features
- Triple detection – Opening (reed switch), shock, and tilt sensors reduce false alarms and catch tampering attempts early.
- Jeweller wireless protocol – Two-way, encrypted communication with frequency hopping for robust, interference-resistant performance.
- Long range + long life – Up to 1,200 m line-of-sight range and up to 5 years from a single CR123A battery.
- Smart tuning – 3 sensitivity levels for shock and adjustable tilt threshold from 5° to 25° via the Ajax apps.
- Anti-sabotage design – Tamper alarm and device authentication to protect against removal or spoofing.
- Flexible integration – Terminal for a third-party normally-closed (NC) wired detector expands coverage options.
- Compact, indoor-rated – IP50 enclosure, 20×90 mm profile, and clean white finish suit residential and commercial installs.
Technical Specifications
| Category | Details |
|---|---|
| Communication | Ajax Jeweller two-way wireless; encrypted with dynamic key; frequency hopping |
| Radio Range | Up to 1,200 m (open space) between detector and hub or range extender |
| RF Bands | 866.0–866.5 MHz; 868.0–868.6 MHz; 868.7–869.2 MHz; 915.85–926.5 MHz; 921.0–922.0 MHz (region-dependent) |
| ERP / Modulation | Up to 20 mW; GFSK |
| Sensitive Elements | 1× accelerometer (shock/tilt), 1× reed switch (opening) |
| Shock Sensitivity | 3 levels; option to ignore single shock (set in app) |
| Tilt Threshold | Adjustable from 5° to 25° (set in app) |
| External Input | Terminal for third-party detector with NC (normally closed) contact type |
| Anti-Sabotage | Tamper alarm (removal/tearing from surface), device authentication (anti-spoofing) |
| Power / Battery | 1× CR123A (pre-installed), nominal 3 V⎓, up to 5 years battery life |
| Battery Specs | Capacity 1,600 mAh; low battery 2.5 V; recovery 2.7 V; end-of-life 2.1 V; manufacturer Huiderui |
| Dimensions / Weight | Ø 20 × 90 mm; 29 g |
| Environment | Indoor; operating −10 °C to +40 °C; up to 75% RH; IP50 protection class |
| Colors | White, Black |
Accessories & Compatible Mounts
- SmartBracket mounting panel
- Big magnet
- Small magnet
- CR123A battery (pre-installed)
- Terminal for connecting a third-party NC detector
- Installation kit & Quick start guide
Ideal Applications
- Door and window intrusion detection with tamper monitoring
- Skylights, hatches, and tilt-prone openings where movement must be detected
- Retrofit projects needing long-range, wire-free installation
DoorProtect Plus Jeweller is a compact, reliable choice for professional installers and end users who need fast, encrypted alerts and flexible configuration in a clean, indoor-rated form factor.
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