Ajax LifeQuality Jeweller wireless air quality monitor, CO2, temperature and humidity

Overview

The Ajax LifeQuality Jeweller is a wireless indoor air quality monitor that measures carbon dioxide (CO2), temperature and humidity and shows them in the Ajax app with charts. It alerts you when a reading passes the limits you set, and it can switch on ventilation, a humidifier or heating through Ajax scenarios. It suits bedrooms, classrooms, meeting rooms and offices on an Ajax Hub 2 family system where stuffy air or damp is a concern.

Is it right for you?

• It suits a bedroom, nursery, classroom, office or meeting room where you want to know when to ventilate.
• Choose it if you want automatic ventilation or humidity control through Ajax relays or sockets.
• It is indoor only (IP50, 0 to 50 °C) and can sit on a shelf or table, so no fixing is needed.
• It works with Hub 2, Hub 2 (4G), Hub 2 Plus and the ReX 2 range extender; it is not compatible with the first-generation ReX.

Key features

• CO2 measured from 400 to 10,000 ppm with ±30 ppm or ±3% accuracy below 5,000 ppm, with air rated normal up to 1,000 ppm, moderately polluted to 1,400 ppm, polluted to 2,000 ppm and critically polluted above that.
• Temperature measured to ±0.2 °C in 0.1 °C steps, and humidity from 0 to 100% to ±1.8% in 1% steps; comfort ranges of 14 to 21 °C and 30 to 60% are shown.
• Readings update at least once a minute, with real-time charts in the app and measurements stored for up to 2 years.
• Notifications when a reading exceeds the limits you set, and scenarios that react to CO2, temperature and humidity, for example turning on plenum ventilation.
• LED on the front shows air quality in green, yellow, red or purple on a critical change or when you touch the front panel.
• Automatic CO2 calibration every 1 to 14 days in a ventilated room; manual calibration from the app for unventilated rooms, recommended every 2 to 3 weeks there.
• Backup memory stores up to 3 days of readings if contact with the hub is lost, then sends them when it reconnects.
• Two CR123A batteries, pre-installed, for up to 3 years (2.5 years with LED indication and the accelerometer enabled); Jeweller radio up to 1,700 m in open space, Wings for data, and an accelerometer that reports if the device is moved.

What else you need

An Ajax Hub 2, Hub 2 (4G) or Hub 2 Plus (or a ReX 2 range extender) and the Ajax app. For automatic ventilation or humidifying you also need Ajax automation devices such as a Relay, WallSwitch or Socket to switch the equipment.

Installation

No fixing is required: place it on a table or shelf, or mount it at any height indoors on the SmartBracket panel. Add it to the hub in the Ajax app. It is a job you can do yourself, or an Ajax installer can set up the scenarios.

Software and licences

Limits, notifications, scenarios, calibration and LED indication are managed in the Ajax app, which also holds the charts.

Before you buy

• Not compatible with the first-generation ReX range extender.
• Indoor use only.
• Enabling LED indication and the accelerometer reduces battery life from 3 to 2.5 years.
• In rooms that are never ventilated, plan to calibrate the CO2 sensor manually every 2 to 3 weeks.
• Choose black or white; 77 × 77 × 34.5 mm, 127 g.