Ajax FireProtect 2 RB (Heat/Smoke/CO) Jeweller

Overview

The Ajax FireProtect 2 RB (Heat/Smoke/CO) Jeweller detects smoke, dangerous heat and carbon monoxide (CO) in one unit, sounding an 85 dB siren and alerting your Ajax system. A double-spectrum optical sensor ignores water vapour, a Class A1R heat sensor catches a dangerous temperature or a fast rise, and a chemical CO sensor warns of the gas you cannot see or smell. Its two CR123A batteries can be replaced and are rated for up to 7 years.

Is it right for you?

• Choose it where you want carbon monoxide detection as well as smoke and heat from one unit.
• Because it ignores water vapour, it suits hallways near bathrooms and kitchens.
• If CO detection is not needed, the RB (Heat/Smoke) and SB (Heat/Smoke) versions have the same fire sensors without the CO sensor.
• The CO sensor has a 10-year life, after which the whole detector must be replaced.

Key features

• Chemical CO sensor that alarms on accumulated dose: more than 50 ppm within 90 minutes, more than 100 ppm within 40 minutes, or more than 300 ppm within 3 minutes. It stops alerting when CO falls to 50 ppm within a minute.
• Double-spectrum optical smoke sensor that recognises smoke by particle size and does not react to water vapour, in a patented chamber that keeps out dust, dirt and insects.
• Heat sensor meeting the requirements for Class A1R heat detectors under EN 54-5 and BS 5446-2: alarm above 64 °C or on a rise of more than 10 °C within 1 minute.
• Built-in siren at 85 dB at 3 m, sounding until the cause is cleared or the user silences it.
• Interconnected alarm through the hub within 20 seconds, plus a fallback link detector to detector that sounds every connected detector within a minute even if the hub is lost (firmware 5.59.2.XX or later).
• LED indication: green every 56 seconds for power, yellow for faults, red for a fire alarm; front button for testing and silencing.
• Jeweller radio up to 1,700 m in open space, encrypted with frequency hopping.
• Two CR123A batteries, pre-installed, rated for up to 7 years; 124 x 124 x 45 mm, 274.5 g.

What else you need

An Ajax hub. The manufacturer lists it as compatible with all hubs and range extenders, including Hub (2G), Hub (4G), Hub Plus, Hub 2 (2G), Hub 2 (4G), Hub 2 Plus, Hub BP, ReX, ReX 2 and the Superior hubs.

The Ajax app, where alerts arrive and the detector is managed.

Installation

An Ajax installer can fit it with the SmartBracket mounting panel, which allows the detector’s position to be adjusted after installation, and add it in the app. It is for indoor use.

Before you buy

Indoor use only, from 0 to 50 °C and up to 80% humidity, IP20.

The CO sensor lasts 10 years; after that the detector must be replaced with a new one.

A CO concentration of 400 ppm within 3 hours can be life-threatening, so treat a CO alarm as an emergency and ventilate the room.

The self-test is not available while the detector is in an alarm state. Communication loss is detected within 15 minutes.