AQMesh is the only commercially available and proven low-cost system for monitoring air quality. The product combines a robust hardware platform with the latest sensor technology and GPRS communication, cloud-based data processing and secure online access. AQMesh pods are manufactured in the UK to the very high quality based on many years of experience of developing environmental monitoring equipment for harsh environments and challenging international standards. This experience has also allowed electronic noise to be reduced in such a way that the best possible sensitivity is achieved from the sensors used. Gases are measured using the latest generation of electrochemical sensors, which allow compensation for environmental factors and sensitivity to 5ppb. Particles are measured using a light scattering optical particle counter, and noise is measured using an omnidirectional electric condenser microphone.

• Measures gases NO, NO2, NOx, O3, CO, SO2 and H2S using the latest generation of electrochemical sensors
• Optional CO2 monitoring with a NDIR sensor
• Measures particulates PM1, PM2.5, PM10 and TPC with a light-scattering optical particle counter
• Measures relative humidity, pod temperature, atmospheric pressure and noise
• Optional meteorological sensor for wind speed and direction measurement
• Various power options, including battery and bespoke solar pack
• Wireless communications
• Secure online data access
• Extensively proven performance and in the field accuracy against reference equipment
• Global supply and support

Configurator below on this page

10 reasons to choose AQMesh

• No other commercially available air quality monitor can demonstrate better accuracy
• You can locate it wherever you need to, unconstrained by power and communications infrastructure
• It is a neat all-inclusive package
• AQMesh benefits from world-class partnerships
• Your data is secure
• Anybody can install, maintain and operate it
• You can manage AQMesh from an online dashboard
• The equipment has the quality you expect from an established manufacturer
• The design is fit for purpose
• We provide real, ongoing support to users

Measurement

 

Sensor	Sensor type	Units	Range#2
NO	Electrochemical	ppb or µg/m3	0 to 4,000 ppb
NO2	Electrochemical	ppb or µg/m3	0 to 4,000 ppb
NOx	Electrochemical	ppb or µg/m3	0 to 8,000 ppb
O3	Electrochemical	ppb or µg/m3	0 to 1,800 ppb
CO	Electrochemical	ppb or µg/m3	0 to 6,000 ppb
SO2	Electrochemical	ppb or µg/m3	0 to 10,000 ppb
H2S	Electrochemical	ppb or µg/m3	0 to 100,000 ppb
CO2	NDIR	ppm or mg/m3	0 to 5,000 ppm
Pod temperature	Solid state	°C or °F	-20°C to 100°C
Pressure	Solid state	mb	500 to 1500 mb
Humidity	Solid state	%	0 to 100%
Noise	Omnidirectional mic	dB	35 to 100 dB SPL
Particle count	Optical particle counter	Particles/cm3	0.30 to 30 µm
PM1#1	Optical particle counter	µg/m3	0 to 200 µg/m3
PM2.5#1	Optical particle counter	µg/m3	0 to 500 µg/m3
PM10#1 GPS	Optical particle counter Fitted as standard	µg/m3 N/A	0 to 1,000 µg/m3 N/A

Performance

 

Sensor	Limit of confidence#3	Typical precision to ref#4	Typical mean prescaled accuracy#5
NO	< 5 ppb	>0.9 R2	+/- 5 ppb
NO2	< 10 ppb	>0.85 R2	+/- 10 ppb
NOx	< 10 ppb	>0.9 R2	+/- 10 ppb
O3	< 5 ppb	>0.9 R2	+/- 10 ppb
CO	< 50 ppb	>0.8 R2	+/- 0.05 ppm
SO2	< 10 ppb	>0.7 R2	+/- 5 ppb
H2S	< 5 ppb	>0.7 R2	+/- 5 ppb
CO2	< 1 ppm	>0.9 R2	+/- 30 ppm
Sensor	Limit of detection	Typical precision to ref#4	Typical mean prescaled accuracy#5
Pod temperature	0.1°C	>0.9 R2	+/- 2°C
Pressure	1 mb	>0.9 R2	+/- 5 mb
Humidity	1% RH	>0.9 R2	+/- 5% RH
Average noise#6	20 Hz to 20 kHz	>0.8 R2	+/- 1 dB
Peak noise#6	20 Hz to 20 kHz	N/A	+/- 3 dB
Particle count	0 particles	>0.9 R2 variable	N/A
PM1 (v2.5)	0 µg/m3	>0.85 R2 variable	+/- 15 µg/m3 variable
PM2.5 (v2.5)	0 µg/m3	>0.85 R2 variable	+/- 20 µg/m3 variable
PM10 (v2.5)	0 µg/m3	>0.75 R2	+/- 30 µg/m3 variable
PM1 (v2.5h) PM2.5 (v2.5h) PM10 (v2.5h)	0 µg/m3 0 µg/m3 0 µg/m3	>0.9 R2 variable >0.9 R2 variable >0.85 R2 variable	+/- 5 µg/m3 variable +/- 5 µg/m3 variable +/- 5 µg/m3 variable

Sensor life

 

Sensor type	Expected lifespan	Notes
Electrochemical	2 years#7	See AQMesh standard operating procedure
NDIR	5 years	See AQMesh standard operating procedure
Solid state	5 years	See AQMesh standard operating procedure
Omnidirectional microphone	5 years	See AQMesh standard operating procedure
Optical particle counter	1 year (minimum)#7	Maintenance dependent on application & settings#8

Power

 

Option	Expected lifespan	Notes
External DC	>5 years	9 – 24V DC
Lithium metal battery pack#9	>24 months	Dependent on measurement strategy & pod spec
External high capacity battery pack#9	>60 months	Dependent on measurement strategy & pod spec
NiMH rechargeable battery pack	>4 months	Dependent on measurement strategy & pod spec
Solar power pack	>5 years	Change internal lead-acid battery every 24 months

Physical

 

Enclosure	Environmental	Mounting	Approx. size & weight
ABS, protection IP65	Temperature range: -20°C to +40°C Humidity range: 15 to 95% RH	Pod supplied with mounting bracket for walls / posts	Length: 170 mm Width: 220 mm Height (excl antenna): 250mm Height (incl antenna): 430mm Weight: 2 – 2.7kg

Data access and communications

 

Communications	Measurement period	Transmission frequency	Server software	Data access
Raw data sent to remote server via 2G or 3G SIM (a data access contract is required)	Variable, from 1 minute to 1 hour	Variable, from 5 minutes to 12 hour intervals	Web browser based, processing of sensor output to give reading, database storage on secure server	Tables, graphs, data download, multi-user access, password controlled, optional API data access

Data access

AQMesh secure data access and online pod management

AQMesh is available with a range of secure data access packages tailored for varying levels of requirements. The table below provides an overview of which features and benefits are available with each option, with further details about the various packages outlined underneath.

	Basic	API	AQMeshData.net	AirMonitors.net
Data access	Secure online folder	API feed	Secure login & CSV download	API feed or CSV download
Data collection	Near real-time	Near real-time	Near real-time	Near real-time
Data delivery	Weekly	On demand	On demand	On demand
Data storage	12 months	12 months	12 months	5+ years
Secure login access	✘	✘	✔	✔
Change pod settings	✘	✔	✔	✔
Failed sensor alerts	✔	✔	✔	✔
Cross-gas affected sensor alerts	✔	✔	✔	✔
Destabilised sensor alerts	✔	✔	✔	✔
Sensor rebasing	✔	✔	✔	✔
PM moisture filter	✔	✔	✔	✔
Additional features				Email alerts
				Data validation
				Linear regression analysis
				OpenAir analytics
				Air Now compatibility
				Dynamic time averaging
				Powerful API in JSON and CSV
				Advanced graphing
				Mapping

The API and AQMeshData.net packages are available as either standard or premium options.

The standard option is for reading interval settings of 10 minutes or longer.
The premium option is for reading interval settings of shorter than 10 minutes.