Ajax DoorProtect Plus Fibra Black Wired Opening, Shock & Tilt Detector
The Ajax DoorProtect Plus Fibra in black is a wired magnetic contact sensor built for doors, windows, skylights and vaults that demand reliable, hard-wired protection. It combines two reed switches with a built-in accelerometer, allowing it to detect opening, physical shock, and tilt in a single compact device. As part of Ajax's Fibra wired product line, it connects to a compatible Ajax hub over a secure, two-way wired protocol that blends the resilience of cabling with the flexibility usually associated with wireless systems.
Key Features
- Dual reed switches let the magnet be mounted on either the left or right side of the detector without affecting performance.
- Built-in accelerometer detects shock and tilt, useful for identifying forced entry attempts or drilling on doors and locks.
- Three-level adjustable shock sensitivity can be tuned to the protected surface, from glass and wood to concrete.
- Tilt monitoring lets a window stay armed in ventilation mode while still detecting suspicious movement beyond a set angle.
- Wired Fibra connection supports cable runs of up to roughly 2,000 metres using standard U/UTP cat.5 cable.
- Terminal for a third-party NC detector allows an additional wired sensor, such as a roller shutter detector, to be integrated into the same line.
- Anti-sabotage protection guards against tampering and cable interference for added system integrity.
- Durable plastic-encased switches are designed to survive drops and rough handling during transport and installation.
Reliable Wired Security for Demanding Installations
This detector suits homes, offices, retail premises, and other facilities where installers prefer a hard-wired sensor over battery-powered alternatives. It is particularly well suited to entry doors, ground-floor windows, skylights, and secure storage areas where continuous power and a stable wired connection are priorities. Because it integrates into the broader Ajax ecosystem, it can be combined with other Fibra, Jeweller, and hub-connected devices to build a layered intrusion, fire, or automation system managed from a single app.
What's in the Box
- Ajax DoorProtect Plus Fibra detector (black)
- Small and large magnets for flexible mounting
- Mounting screws and installation hardware
- Quick start guide
Frequently Asked Questions
Does this detector work without a hub?
No. It is designed exclusively for use within an Ajax system and communicates with a compatible hub over the Fibra wired protocol.
Can it be used outdoors?
No, this detector is intended for indoor installation only, on doors, windows, skylights, or similar interior openings.
Can I connect another sensor to it?
Yes, it includes terminals for a third-party normally closed (NC) detector, such as a motion or vibration sensor, though it cannot supply power to that external device.
Additional Resources
(AJAX30855)
| SKU | AJAX30855 |
| Brand | AJAX |
| Shipping Weight | 0.1500kg |
| Shipping Width | 0.140m |
| Shipping Height | 0.220m |
| Shipping Length | 0.080m |
| Shipping Cubic | 0.002464000m3 |
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