How do Electrochemical sensors work? 

Electrochemical sensors are the most used in diffusion mode in which gas in the ambient environment enters through a hole in the face of the cell. Some instruments use a pump to supply air or gas samples to the sensor. A PTFE membrane is fitted over the hole to prevent water or oils from entering the cell. Sensor ranges and sensitivities can be varied in design by using different size holes. Larger holes provide higher sensitivity and resolution, whereas smaller holes reduce sensitivity and resolution but increase the range.  


Electrochemical sensors have several benefits.  

  • Can be specific to a particular gas or vapor in the parts-per-million range. However, the degree of selectivity depends on the type of sensor, the target gas and the concentration of gas the sensor is designed to detect.  
  • High repeatability and accuracy rate. Once calibrated to a known concentration, the sensor will provide an accurate reading to a target gas that is repeatable. 
  • Not susceptible to poisoning by other gases, with the presence of other ambient vapours will not shorten or curtail the life of the sensor. 
  • Less expensive than most other gas detection technologies, such as IR or PID technologies. Electrochemical sensors are also more economical. 

Issues with cross-sensitivity  

Cross-sensitivity occurs when a gas other than the gas being monitored/detected can affect the reading given by an electrochemical sensor. This causes the electrode within the sensor to react even if the target gas is not actually present, or it causes an otherwise inaccurate reading and/or alarm for that gas. Cross-sensitivity may cause several types of inaccurate reading in electrochemical gas detectors. These can be positive (indicating the presence of a gas even though it is not actually there or indicating a level of that gas above its true value), negative (a reduced response to the target gas, suggesting that it is absent when it is present, or a reading that suggests there is a lower concentration of the target gas than there is), or the interfering gas can cause inhibition. 

Factors affecting electrochemical sensor life  

There are three main factors that affect the sensor life including temperature, exposure to extremely high gas concentrations and humidity. Other factors include sensor electrodes and extreme vibration and mechanical shocks. 

Temperature extremes can affect sensor life. The manufacturer will state an operating temperature range for the instrument: typically -30˚C to +50˚C. High quality sensors will, however, be able to withstand temporary excursions beyond these limits. Short (1-2 hours) exposure to 60-65˚C for H2S or CO sensors (for example) is acceptable, but repeated incidents will result in evaporation of the electrolyte and shifts in the baseline (zero) reading and slower response.  

Exposure to extremely high gas concentrations can also compromise sensor performance. Electrochemical sensors are typically tested by exposure to as much as ten-times their design limit. Sensors constructed using high quality catalyst material should be able to withstand such exposures without changes to chemistry or long-term performance loss. Sensors with lower catalyst loading may suffer damage. 

The most considerable influence on sensor life is humidity. The ideal environmental condition for electrochemical sensors is 20˚Celsius and 60% RH (relative humidity). When the ambient humidity increases beyond 60%RH water will be absorbed into the electrolyte causing dilution. In extreme cases the liquid content can increase by 2-3 times, potentially resulting in leakage from the sensor body, and then through the pins. Below 60%RH water in the electrolyte will begin to de-hydrate. The response time may be significantly extended as the electrolyte or dehydrated. Sensor electrodes can in unusual conditions be poisoned by interfering gases that adsorb onto the catalyst or react with it creating by-products which inhibit the catalyst. 

Extreme vibration and mechanical shocks can also harm sensors by fracturing the welds that bond the platinum electrodes, connecting strips (or wires in some sensors) and pins together. 

‘Normal’ life expectancy of electrochemical Sensor  

Electrochemical sensors for common gases such as carbon monoxide or hydrogen sulphide have an operational life typically stated at 2-3 years. More exotic gas sensor such as hydrogen fluoride may have a life of only 12-18 months. In ideal conditions (stable temperature and humidity in the region of 20˚C and 60%RH) with no incidence of contaminants, electrochemical sensors have been known to operate more than 4000 days (11 years). Periodic exposure to the target gas does not limit the life of these tiny fuel cells: high quality sensors have a large amount of catalyst material and robust conductors which do not become depleted by the reaction. 


As electrochemical sensors are more economical, We have a range of portable products and fixed products that use this type of sensor to detect gases.  

To explore more, visit our technical page for more information. 

Understanding Air Pollutants: A Guide to Particulate Matter (PM)

What is Particulate Matter (PM)

Particulate Matter is a mixture of solids and liquid droplets. Some PM is emitted directly, otherwise it forms when pollutants created from various sources react in the atmosphere.

Particulate matter is generally classified in two categories: PM10 and PM2.5.

PM10 refers to particles 10 micrometres or smaller in diameter. PM2.5 refers to smaller particles which are 2.5 micrometres or less in diameter. To put this in perspective, this is 30 times smaller than the average diameter of a human hair (75 micrometres), or 12 times less than pollen.


Particulate matter comes from both natural and anthropogenic (human caused) sources.

The sources for PM2.5 and PM10 can vary, with much of the PM2.5 found in the air coming from diesel, gasoline and oil combustion emissions. PM10 is often emitted through the dust from construction sites, industrial sources, waste burning, agriculture and landfills.

DEFRA reports the major mobile source of particulate matter (PM) in the UK is road transport, and the main stationary sources are the burning of fuels for industrial, commercial, and domestic purposes. Emissions of dust can also generate high concentrations of particulate matter close to quarries and construction sites.

In London specifically, road transport makes up 30% of PM emissions. Since the introduction of the Ultra Low Emissions Zone (ULEZ) in 2019 vehicular emissions have reduced by 30%, and the proportion of low emitting vehicles has increased significantly. Construction also contributes significantly to PM emissions in London, accounting for 15%.

Environmental Impact

Particulate matter has been shown, in scientific studies by the California Air Resources Board, to reduce visibility, as well as to adversely affect climate, and ecosystems. These effects were clear for all to see during lockdowns across the world in 2020, when views across many of the larger cities became clear for the first time in years.

It is possible for particles to travel long distances with the wind and settle on ground or water, which could lead to effects such as depleting nutrients in soil, making bodies of water acidic and contributing to acid rain effects.

Health Impact

Particle pollution can cause damage to the respiratory system with coarse particles (PM10) irritating the nose, eyes and throat, and fine particles (PM2.5) being even more dangerous, due to their capacity to enter the deeper part of the lungs and even the blood. Any health effect is impacted by the length of time of exposure as well as the size and composition of the particles, with PM2.5 being of the most concern.

Short-term exposure to PM2.5 has been associated with respiratory symptoms, asthma attacks and greater hospital admissions for heart and lung issues. Long term PM2.5 exposure has been linked to reduced lung function in children and premature death in those with chronic lung and heart conditions.

The Global Air Quality Guidelines 2021 from the World Health Organisation (WHO) show that more than 90% of the global population in 2019 lived in areas where particulate concentrations exceeded the 2005 WHO air quality guideline of 10 µg/m3. With reports showing that the annual population-weighted PM2.5 concentrations were highest in the WHO South-East Asia Region, followed by the WHO Eastern Mediterranean Region.

DEFRA have voiced how ‘comprehensive’ action must be taken to safeguard health nationally, and outlined their specific goals to reduce particulate matter emissions by 46% by 2030.

How Can PM Be Measured

There are two methods of measuring particulate matter described by DEFRA, the first is the filter-based gravimetric method. This method involves drawing in a volume of air and weighing the particulate matter to determine the mass in that volume of air.

A second method uses TEOM (Tapered Element Oscillating Microbalance) which involves measuring the change in vibration of a filter to determine PM levels.

The majority of monitoring sites in the UK use TEOM analysers, such as those in the Automatic Urban and Rural Network (AURN).

Sensit by Crowcon RAMP

The RAMP is a robust, remote and reliable low-cost air quality monitoring platform. The device is capable of monitoring up to five gaseous chemical pollutants. The device uses a laser scattering detection method to detect both PM2.5 and PM10 with a range of 1-1000 μg/m3.

The RAMP is suitable for use in a variety of industries including construction, transport, waste, oil and gas, chemical and petrochemical industries.

What is a Pellistor (Catalytic Beads)? 

Pellistor sensors consist of two matched wire coils, each embedded in a ceramic bead. Current is passed through the coils, heating the beads to approximately 230˚C. The bead becomes hot from the combustion, resulting in a temperature difference between this active and the other ‘reference’ bead.  This causes a difference in resistance, which is measured; the amount of gas present is directly proportional to the resistance change, so gas concentration as a percentage of its lower explosive limit (% LEL*) can be accurately determined. Flammable gas burns on the bead and the additional heat generated produces an increase in coil resistance which is measured by the instrument to indicate gas concentration. Pellistor sensors are widely used throughout industry including on oil rigs, at refineries, and for underground construction purposes such as mines, and tunnels. 

Benefits of Pellistor Sensors?

Pellistor sensors are relatively low in cost due to differences in the level of technology in comparison to the more complex technologies like IR sensors, however, they may be required to be replaced more frequently. With a linear output corresponding to the gas concentration, correction factors can be used to calculate the approximate response of pellistors to other flammable gases, which can make pellistors a good choice when there are multiple flammable gases and vapours present. 

Factors affecting Pellistor Sensor Life

The two main factors that shorten the sensor life include exposure to high gas concentration and poisoning or inhibition of the sensor. Extreme mechanical shock or vibration can also affect the sensor life.  

The capacity of the catalyst surface to oxidise the gas reduces when it has been poisoned or inhibited. Sensor lifetimes of up to ten years is known in some applications where inhibiting or poisoning compounds are not present. Higher power pellistors have larger beads, hence more catalyst, and that greater catalytic activity ensures less vulnerability to poisoning. More porous beads allow easier access of the gas to more catalyst allowing greater catalytic activity from a surface volume instead of just a surface area. Skilled initial design and sophisticated manufacturing processes ensure maximum bead porosity. 

Strength of the bead is also of great importance since exposure to high gas concentrations (>100% LEL) may compromise sensor integrity causing cracking. Performance is affected and often offsets in the zero/base-line signal result. Incomplete combustion results in carbon deposits on the bead: the carbon ‘grows’ in the pores and causes mechanical damage or just gets in the way of gas reaching the pellistor. The carbon may however be burned off over time to re-reveal catalytic sites.  

Extreme mechanical shock or vibration can in rare cases cause a break in the pellistor coils. This issue is more prevalent on portable rather than fixed-point gas detectors as they are more likely to be dropped, and the pellistors used are lower power (to maximise battery life) and thus use more delicate thinner wire coils. 

What happens when a Pellistor is poisoned? 

A poisoned pellistor remains electrically operational but may fail to respond to gas as it will not produce an output when exposed to flammable gas. This means a detector would not go into alarm, giving the impression that the environment is safe.  

Compounds containing silicon, lead, sulphur, and phosphates at just a few parts per million (ppm) can impair pellistor performance.  Therefore, whether it’s something in your general working environment, or something as harmless as cleaning equipment or hand cream, bringing it near to a pellistor could mean you are compromising your sensor’s effectiveness without even realising it. 

Why are silicones bad? 

Silicones have their virtues, but they may be more common than you first thought. Some examples include sealants, adhesives, lubricants, and thermal and electrical insulation. Silicones, have the ability to poison a sensor on a pellistor at extremely low levels, because they act cumulatively a bit at a time.  


Our portable products all use low power portables pellistor beads. This prolongs battery life but can make them prone to poisoning. Which is why we offer alternatives that do not poison, such as the IR and MPS sensors. Our fixed products use a porous high energy fixed pellistor. 

To explore more, visit our technical page for more information.

 Our Partnership with Point Safety 


Point safety Ltd are one of the UK’s leading gas safety consultants with 20 years of experience, knowledge and background in the instrumentation industry. Founded in 2011 by their current Managing Director, Point Safety now specialise in sectors such as oil and gas, pharmaceutical, utilities and telecommunication, providing a range of industries, supplying, installing and maintenance of bespoke solutions and the service and supply of test equipment. Point Safety provide constancy to their customers as they believe that there is no such thing as ‘one size fits all’ nor does one solution just have to be ‘fit for purpose’.

Views on Gas Detection

In regards to portable gas detection being an essential piece of equipment when detecting toxic or explosive gasses as well as measuring gas concentration. Point Safety put customers at the forefront of gas detection, they believe that gas detection not only protects their customers plants and processes but more importantly it helps to prevent injury, thereby helping to ensure the health, safety, and wellbeing of its workers. Through the supply and support of Crowcon our portable instruments, this allows Point Safety’s customers to have the freedom to have reliable, efficient service with the confidence and knowledge that the equipment being provided allows for the protection of workers and their employees. Therefore, turnaround is important to Point Safety, ensuring that they provide a quick and effective service turnaround for all units is an essential, thereby ensuring minimal downtime and increased customer satisfaction.

As Point Safety provide the supply, installation and maintenance of the bespoke solutions, the implementation and servicing of their fixed systems that are provided nationwide are vital to their customers. Point Safety are confident that the continuous monitoring of these systems ensures not only our customers and their employee’s lives are safe but also that of their surroundings.

Working with Crowcon

Through continuous communication of knowledge and expertise with Point Safety, our partnership will allow for the supply of gas detection instruments to ensure the safety to those working within the oil and gas, pharmaceutical, utilities and telecommunication industries.

“We have a great long-standing relationship with Point Safety with them now a trusted partner in the North. Point Safety offers outstanding service to our end users and are extremely knowledgeable on Crowcon products” – Katherine Winter, Northern Account Manager. Our partnership, Point Safety allow for the distributors of Crowcon products throughout the UK, in portable and fixed gas detectors/systems. Our partnership also has enabled Point Safety to become a Crowcon calibration site, with all their engineers being fully trained and certified to Crowcon standards. “Point Safety Ltd are extremely proud to be associated with Crowcon, the leaders in gas detection systems, not only in the UK but worldwide. Their expertise, knowledge, first class product range together with their total support is second to none.” – Dawn Beever, Head of Sales and Marketing.

Understanding Air Pollutants: A Guide to Nitrogen Oxides (NOx)

What are Nitrogen Oxides (NOx)

Nitrogen oxides (NOx) are some of the most common air pollutants alongside carbon monoxide (CO), ozone (O3), particulate matter (PM2.5 and PM10) and sulphur oxides (SOx).

NOx are poisonous gases derived from nitrogen and oxygen combustion under high pressure and temperatures. The two most common nitrous oxides are nitric oxide (NO) and nitrogen dioxide (NO2). NOx can react with volatile organic compounds to form ground-level ozone and also reacts with atmospheric chemicals, producing PM2.5.


A major source of anthropogenic emissions of nitrogen oxides into the atmosphere, originates from the combustion of fossil fuels in stationary sources, such as heating and power generation, as well as in motor vehicles, such as internal combustion engines. According to figures from the UK’s Department for Environment, Food and Rural Affairs (DEFRA), road transport accounted for 33% of the emissions of nitrogen oxides in the UK in 2019, and other forms of transport such as aviation, rail, and shipping accounted for 14%. Whilst road transport does account for a third of NOx emissions, there has been a downward trend in emissions as newer vehicles meet more strict emissions standards.

Key industries which generate NOx through their activities are the energy, manufacturing and construction industries. The London Atmospheric Emissions Inventory (LAEI) found that NOx generated from construction accounts for 7.5% of all NOx emissions in the capital.

Environmental Impact

Rapid industrial development in the past 30 years has led to an increase in ambient levels of NOx and other pollutants. The impact of Nitrogen Oxides (NOx), is visible within the smog and typical brown clouds often covering larger cities, which provide poor air quality for the inhabitants. It can also lead to poor visibility, with nitrate particles making the air foggy. NOx emissions also contribute to the creation of acid rain and the formation of ground-level ozone that can damage ecosystems, animal and plant life.

Health Impact

There are both direct and indirect effects on human health as a result of NOx exposure.

High levels of Nitrogen Dioxide (NO2) can be specifically dangerous as they inflame the lining of your airways, and cause a flare-up of asthma or COPD, alongside symptoms such as coughing and difficulty breathing. Those most likely to be affected by these side effects, according to statistics from the British Lung Foundation, include children and older people.

The health effects of NOx become more severe with exposure to higher concentrations or longer term exposure. Prolonged exposure to high levels of NOx has the potential to increase vulnerability to respiratory infections, lead to decreased lung function and contribute to the development of asthma.

Whilst the effects are heightened with longer term and higher levels of exposure, particularly to children, for older people and those with pre-existing conditions, even short term exposure can cause symptoms such as irritation of the lungs in otherwise healthy people.

NOx exposure also has an impact on mortality, with the Department for Environment, Food & Rural Affairs estimating in 2015 that the effects of NO2 on mortality were equivalent to 23,500 deaths in the UK annually.

How Can NOx Be Measured

Nitrogen oxides can be measured through a process known as ‘chemiluminescence’ which is a chemical reaction emitting energy in the form of light. There are over 200 monitoring sites throughout the UK using chemiluminescence analysers.

The largest monitoring network in the UK is the Automatic Urban and Rural Network (AURN), with 127 sites across the country. The AURN is the main hub in the country for compliance reporting against the Ambient Air Quality Directives.

Nitrogen oxides can also be accurately measured in low concentrations using electrochemical sensors – often preferred over alternative methods due to their robustness.

Sensit by Crowcon RAMP

The RAMP is a robust, remote and reliable low-cost air quality monitoring platform. The device is capable of monitoring up to five gaseous chemical pollutants and the electrochemical sensors offer PPB, parts per billion, resolution for both NO and NO2 along with other common air pollutants.

The RAMP is suitable for use in a variety of industries including construction, transport, waste, oil and gas, chemical and petrochemical industries.

The Benefits of ‘Hot Swappable’ Sensors

What are ‘Hot Swappable’ Sensors?

Hot swappable sensors allow for the replacement or addition of components to a device without the need for stopping, shutting down or rebooting the production process, thus allowing for high productivity and efficiency.

Other benefits of ‘Hot swappable’ sensors

Another benefit is that it eliminates the need for hot work permits. Hot work is regularly undertaken during construction and maintenance projects and is a high-risk activity that requires careful and active risk management. These environments pose a significant risk of fire as well as safety. Hot swappable sensors are designed to avoid these potential problems entirely.

Why are they important?

Some gas detection products are designed to go into zoned areas where there can be flammable (explosive) gas present. Therefore, in environments such as a refinery, if you were to disconnect normal electronics, it usually would cause a small spark, and this is a risk as it could potentially lead to a fire or explosion. However, if the electronics have been designed so there is not a spark and have been approved as “not capable of causing an spark” by the certifying authority, these products can be disconnected and reconnected even in an explosive atmosphere without fear of sparking, ensuring that those working in these environments are kept safe.

It is possible to calibrate hot swappable sensors outside a zoned area and thus allow a rapid swapping exercise instead of a far longer calibration process. Thus, the operator need spend only a fraction of the time in the zoned area substantially avoiding personal risk.

Products with ‘Hot Swappable’ Sensors

XgardIQ is a fixed detector and transmitter compatible with Crowcon’s full range of sensor technologies. Available fitted with a variety of sensors for fixed flammable, toxic, oxygen or H2S gas detection. Providing analogue 4-20mA and RS-485 Modbus signals as standard, XgardIQ is optionally available with Alarm and Fault relays and HART communications. The 316 stainless steel is available with three M20 or 1/2“NPT cable entries. (SIL-2) Safety integrity level 2 certified fixed detector.

Find out more

Our Partnership with Sure-Safe 


Sure-safe is a gas detection specialist based in Hertfordshire. With an internal team of 18, they provide fixed and portable gas detectors and in-house service and calibration to provide suitable gas detection across many sectors, including automotive, transportation, water treatment, CHP plants and universities. 

Views on Gas Detection 

Gas detectors are essential for safety and analytical purposes, with site surveys and consultations providing tailor-made risk assessments. Sure-Safe work with customers to implement the most appropriate gas detection solution for their needs. Sure-Safe, fully appreciates the importance of ensuring the equipment required for the task is maintained, calibrated and certified.

 Working with Crowcon  

Sure-Safe and Crowcon have a long-established relationship working together to provide gas detection solutions for over 25 years. “Crowcon is a reliant manufacturer in which our robust relationship has complemented their supply.”

The importance of annual calibration for your flue gas analyser/combustion analyzer 

For many heating engineers, the flue gas analyser/combustion analyzer is vital kit; so much so, that most would have problems working without one. However, calibration and servicing generally require the engineer to send the analyser away for a while. That’s why, when the annual calibration date comes around again, some find themselves tempted to put it off, just for a while … 

Please ignore that temptation. It is absolutely vital to get your flue gas analyser calibrated every year, and failing to do so could cost you your job – or worse. Prompt annual calibration is simply not negotiable, and in this blog post we’ll explore the reasons why. 

Annual certification required 

A flue gas analyser is safety equipment and its accuracy may be – quite literally – a matter of life or death. The  sensors inside flue gas analysers react with the gasses they detect and degrade slightly over time. Compiled over the course of a years active use, the degradation can lead to inaccuracies in the readingsAdditionally, like any equipment, things can go wrong and parts can fail; that’s why all flue gas analyser manufacturers require an annual certificate of calibration, and the impact of not having one can be legally, financially and personally disastrous. 

Imagine, for example, that an accident has occurred and somebody or something has been harmed because your flue gas analyser failed to detect an issue. If that analyser was uncertified and had not been calibrated within the time period required (which would be easy to ascertain, since gas reports have the relevant times and dates printed on them), then you and/or your employer may be held criminally and civilly liable for this, having failed to exercise your duty of care to your client.  

That’s why, if your combustion analyzer is showing any signs of failure, or if your annual calibration is due, you need to book it in promptly. 

What about costs? 

Sometimes, engineers are tempted to put off calibration for fear of the costs. And yes, there may be charges involved due to damage or wear and tear: but what price do you put on safety (both the safety of the people you serve the security of your own job or business?) If cost is an issue, there may be ways to mitigate this. Manufacturers know that calibration is a recurring cost and some offer pre-pay options to make this easier to manage; some offer pre-pay options for parts as well. If you’re not sure whether this is the case for your device, it is worth talking to the manufacturer because the savings can be substantial. 

What happens during calibration? 

During its annual service and calibration, your flue gas analyser will be checked over and any components (for example, an oxygen sensor) will be replaced as required. A known concentration of certified test gas will be passed into the analyser and the instruments software will be adjusted to make sure it takes into account any drop off in sensor response and to ensure the analyser responds appropriately to all gases across the range of detection.  

Don’t wait – calibrate 

As you can see, calibration and any associated changes are vital to the functioning of your analyser, so you should never postpone or overlook your annual calibration: in fact, you must not use a flue gas analyser at all, once the previous calibration has expired. This applies however often (or not) you use it: the risks are the same.  

To find out more, visit our dedicated HVAC page.

Connected safety – Gas Safety Insights for Environmental, Health and Safety (EHS)

In most organisations, roles related to environment, health and safety (EHS) focus heavily on risk reduction. There may be compliance responsibilities interwoven with this − EHS staff are often tasked with implementing hazard controls and may be responsible for enforcing and proving compliance – but above all the focus is on making things safer and healthier, and as productive as possible.

In the not-so-distant past, EHS staff in settings with gas hazards were often responsible for ensuring appropriate gas detection and training, and may have manually collated data from gas detectors, but beyond that they had relatively little data to use. It is hard to proactively drive down incidents or be certain how compliant with safety measures your workforce is, when all you know for sure is whether a detector did or did not sound an alarm.

However, the advent of the internet of things (IoT) has changed all that. Now, EHS staff can connect gas detection systems to the cloud just as they connect a fitness tracker or in-car satellite navigation system, and benefit from the many gas insights this provides. Cloud-based software applications like Crowcon Connect make it easy for EHS staff to identify problems with specific devices (and users!), track and schedule maintenance, automate many aspects of compliance audit and trouble-shoot recurrent problems.

What does connected safety mean for EHS personnel?

In a word: data. Connecting gas monitoring systems to the cloud allows EHS personnel to gather actionable insights (data) from their detector fleet, which they can act upon to improve safety. These include the ‘traditional’ elements such as time in/out of use, exposure levels and alarms sounded, but go far beyond these to include information about individuals’ use of the device (for example, the extent to which an individual/group uses the detector correctly) and where devices are at any given time.

With Crowcon Connect, the ability to use quick user assignment allows EHS staff to optimise their data by linking a specific device with a known user, each and every time, regardless of whether the device is assigned to an individual long term or is part of a pool.

What is quick user assignment?

In this context, quick user assignment is the ability to link or associate a specified user with a specified device, in a swift and straightforward way. For example, Crowcon Connect can use the RFID tags in a user’s ID badge to link them to a given device. This has dual benefits: firstly, the EHS staff know that the information on that device relates to a named individual and secondly, they can trust the data because it is collected and archived automatically, with no risk of human error.

How will connected safety work? Who will it work for?

Connected safety works for the entire organisation; when deployed strategically it can increase safety, improve staff morale and provide a wealth of information about productivity, the working environment and compliance. For EHS staff in particular, a good cloud software package for their gas detector fleet maximises and automates the collection of data while reducing the risk of human error in data capture – this is not only vital to ensure safety, but also makes it far easier to collate the records required at any compliance audit, and reduces the burden of manual (error-prone) documentation. And, when devices are pre-assigned to specific workers, the monitoring of compliance becomes both more accurate and straightforward.

Interested in learning more? Click here to read more about Crowcon’s own cloud software solution.

Our Partnership with Acutest


Acutest have established themselves as a leading player in test instrument supply, repair and calibration, asset management and bespoke training services. Acutest are a complete solution provider who match to each customer’s need. Their team of external account managers support customers with onsite product demonstration as part of the solution identification process. Serving across sectors including utilities (distribution network operators), sole traders, public sector and white goods. Acutest are a trusted partner to many sectors, who have a diverse customer base including the utilities, street works and rail sectors, facilities maintenance teams, manufacturing, processing and industrial plants as well as individual contractors and electricians.

View on Flue Gas Analysers

Providing workers within these sectors with the correct equipment is vital, therefore providing these workers with an essential tool is key at Acutest. This tool is used every day; therefore, Anton by Crowcon flue gas analysers provide an easy-to-use tool that detects CO (Carbon Monoxide) and NO (Nitrogen Oxide).

Working with Crowcon

Acutest Calibration Services

Acutest have been a long-term partner in which our gas analysers prevent users from having to store, charge, carry, calibrate and transport multiple devices. Our equipment allows Acutest customers to conduct all critical test measurements with just one high performance, innovative solution. “Our partnership with Acutest has enabled them to supply their customers with a readily available, reliable product as well as customer support. Anton by Crowcon provide innovative tools for every engineer needs and has been a go to on many occasions.”