Ajax Door Protect (8IN) – Wireless Magnetic Protection for Doors and Windows
The Ajax Door Protect is a compact wireless magnetic opening detector designed for indoor installation and can be easily mounted on doors or windows using the included Smart Bracket. It offers flexible activation thresholds depending on the magnet used—1 cm with the small magnet and up to 2 cm with the big magnet, making it suitable for frames with wider gaps. Additionally, the device features a built-in terminal that allows for the connection of a third-party wired detector, such as a wired glass break sensor or door contact. This expands the system's capabilities by enabling integration with existing wired components, all while maintaining seamless communication through the Ajax wireless ecosystem.
Specifications
| Feature |
Details |
| Type |
Wireless opening detector using a reed switch
|
| Communication |
Ajax Jeweller protocol, two-way encrypted AES, frequency hopping
|
| Operating Frequency |
868.0–868.6 MHz (region-specific frequency bands)
|
| Range (open space) |
Up to ~1,200 m (~3,900 ft) depending on environment
|
| Magnet Options |
Big magnet supports up to ~2 cm (0.8 in) gap; small up to ~1 cm
|
| Battery |
CR123A, pre‑installed, ~3 V; lasts up to ~7 years under normal polling intervals
|
| Voltage/current |
~3 V; quiescent current ~17.5 µA; peak ~21.4 mA
|
| Temperature / Humidity |
−10 °C to +50 °C (standard), up to 75–80% humidity; UL-certified up to +49 °C and 85% humidity
|
| Dimensions / Weight |
Approx. 90 mm × 20 mm × 20 mm; weight ~29 g
|
| Tampering Protection |
Built-in tamper sensor that alerts if detached or removed
|
| External Contact Input |
Terminal for NC third‑party wired detector, e.g. glass break or doorbell sensor
|
| Warranty |
24 months; batteries not covered
|
Key Features
• Big magnet operation: Enables mounting when door/window frame gaps are up to ~2 cm (0.8 in).
• Long battery life: Up to 7 years with regular polling intervals.
• Secure and reliable link: Two‑way encrypted communication with spoof‑protection and jamming alerts.
• Remote diagnostics: Smart Bracket mounting allows setup and testing via the Ajax app without device disassembly.
• Tamper and external input: Detects sabotage attempts and supports integrating an additional wired detector.
• Fast response: ~0.15 s reaction time from opening to alarm trigger.
Typical Applications
• Residential: Secure doors and windows across homes—ideal for entrance doors, patio/window frames, etc.
• Commercial: Monitor access points in retail stores, offices, or small businesses.
• Mixed systems: Works with third-party wired sensors via external contact input, enabling integration with broader security setups.
• Areas with wider frames or gaps: The big magnet (8 in equivalent) is suited for thicker frames or when more spacing is present.
Summary
The Ajax Door Protect with big magnet is a highly reliable, low-profile indoor detector offering long battery life, secure encrypted communication (Jeweller protocol), and flexible installation—even across wider mounting gaps of up to ~2 cm. Its tamper protection, external wired sensor input, and rapid notification capabilities make it an excellent choice for homes, offices, and customized security installations.
