AQMesh Small Sensor Air Quality Monitoring System

AQMesh is the brand of Environmental Instruments Ltd, a UK company founded in 2010 after the MESSAGE research project, with its office and build facility in the West Midlands, England. Since December 2025 it has been part of Gas Data Ltd. It serves environmental consultancies, industrial companies, researchers and local authorities that need reliable air data without full reference stations.

The compact AQMesh pod measures up to six gases, particulate matter, wind speed and direction and noise, with up to 19 parameters from one unit. Sensors are customisable so buyers pay only for the gases they need, and a smart solar pack allows off-grid use. PM2.5 and PM10 are MCERTS indicative certified. Data is available in real time through a secure login or API, and customers own their data. Projects include Breathe London and San Diego County APCD.

• Compact pod: up to six gases plus particulate matter in one unit.
• Extra parameters: wind speed, wind direction and noise, up to 19 parameters in total.
• MCERTS indicative: PM2.5 and PM10 certified, with performance reported against US EPA and CEN targets.
• Smart solar pack: off-grid power for remote or temporary sites.
• AQMeshData platform: real-time data by secure login with customer data ownership.
• API access: data can be shared publicly or integrated into other systems.

Environmental consultancies preparing impact assessments for industrial parks can deploy AQMesh pods for baseline surveys. Landfill and waste treatment operators can monitor H2S and other gases at their boundaries. Universities and city agencies can build research networks to study traffic pollution in Hanoi or Ho Chi Minh City.

AQMesh offers a free five-year warranty, which the company describes as a first for a small-sensor air quality monitor, lowering lifecycle risk. Customisable sensor configurations avoid paying for unneeded gases. Encrypted servers, audit logs and customer data ownership support use in regulated projects, and the pod is built to withstand sandstorms and extreme temperatures.

Environmental consultancies and industrial operators increasingly use certified small-sensor networks for impact assessments, fenceline monitoring and urban studies because reference stations are costly and fixed. In Vietnam, environmental impact assessments and monitoring requirements for industrial and infrastructure projects create a market for portable, certified multi-gas monitors.

Environmental Instruments Ltd was founded in 2010 and is based in the West Midlands, England. In December 2025 it joined its sister company Gas Data Ltd in a merger, with AQMesh products, data access, support, contracts and warranties continuing unchanged under the AQMesh brand.