Ajax EN54 FireProtect Smoke Detector Jeweller Wireless Addressable Point Smoke Detector White

Ajax FireProtect 2 (HS) Wireless Smoke and Heat Detector (119921)

The Ajax FireProtect 2 (HS) is a high-precision wireless fire detector engineered for professional-grade life safety in residential and commercial environments. This model features a patented smoke chamber that is virtually immune to dust and insects, utilizing a dual-spectrum optical sensor to distinguish real smoke from steam or water vapor, significantly reducing false alarms. Additionally, the unit is equipped with two Class A1R thermistors that monitor for rapid temperature spikes, ensuring detection of fast-burning fires even in the absence of smoke. The detector features a built-in 85 dB siren and an integrated LED for immediate local notification. Using the proprietary Jeweller radio protocol, it maintains a secure connection with an Ajax Hub at distances up to 1,700 meters and supports interconnected alarms, allowing every fire detector in the building to sound simultaneously upon detection.

Technical Specifications

* Sensing Elements: Dual-spectrum optical smoke sensor and dual thermistors (Heat).

* Heat Detection: Alarm at +64°C or rapid temperature rise (A1R class).

* Built-in Siren: 85 dB at 3 meters.

* Communication Protocol: Jeweller (868.0–868.6 MHz).

* Radio Range: Up to 1,700 m (in open space).

* Power Supply: 2 x CR123A batteries (up to 7 years life).

* Interconnected Alarms: Supports "Interconnected Fire Detectors Alarm" feature.

* Operating Temperature: 0°C to +50°C.

* Protection Rating: IP20.

* Compliance: EN 14604:2005/AC:2008, EN 54-5:2017+A1:2018.

* Dimensions: 124 × 124 × 45 mm.

* Part Number: 119921.

Advanced Safety & Detection Features

* Maintenance-Free Smoke Chamber: The unique optical system does not require regular cleaning, as the software compensates for contamination and the hardware prevents debris from entering the sensing area.

* Dual-Spectrum Sensor: By using blue and infrared LEDs, the detector can identify the size of volatile particles in real-time, accurately ignoring non-threatening steam or cooking fumes.

* SmartBracket Installation: The mounting panel allows for quick installation without disassembling the device; it also features a tamper mechanism that sends an instant alert if the detector is removed.

* Comprehensive App Control: Users can perform remote self-tests, check battery levels, and silence alarms directly from the Ajax smartphone app, ensuring the system is always ready for an emergency.