The Air Quality Guardian is a reliable air quality monitor designed specifically to measure levels of carbon dioxide (CO₂), relative humidity (RH) and temperature (temp) in your building.

The Air Quality Guardian helps you maintain an energy efficient building. An occupied area with good ventilation will have levels of around 400 - 800ppm CO₂. Anything above this, you know you need to ventilate, anything below this and you may be over-ventilating and wasting energy.

By using the Air Quality Guardian as part of your HVAC system you can also ensure the health and wellbeing of those in the area. This unit uses a simple traffic light system to let you know at a glance when fresh air is needed. By ventilating, you are helping to reduce the risk of a virus such as COVID-19 spreading. A fresh, clean air environment also increases productivity and strengthens the immune system.

• Providing data it lets you know when to ventilate the area, helping to reduce the spread of airborne viruses' such as COVID-19, flu and the common cold
• It has a simple to use traffic light warning system
• Ready to use - straight from the box
• CE, UKCA, RoHS 2.0 and FCC compliant
• Improves energy efficiency
• Save time and money with self-calibration (manual calibration optional)
• Use data logging to analyse trends in your building
• Real time alarms
• Helps to reduce the spread of airborne viruses such as COVID-19, flu and the common cold
• Improved health benefits
• Increased productivity, reduced fatigue
• Power failure battery backup
• Simple and intuitive to use
• Large backlit LCD screen
• Real time measurements of CO2, temp and RH levels
• Simple 4 button navigation
• Wall mountable or desktop
• Low drift NDIR (Non dispersive infra-red) CO2 sensor with a long lifespan
• Built-in data logging
• Simple three-level indoor air quality indication system including: Green (under 800ppm), amber (800 - 1200ppm), red (1200ppm+)
• Configurable audible and visual alarms
• Power and charge via USB
• 8 hour battery backup as standard
• Option to switch to a plant monitoring mode