Approved Crowcon Gas Monitor Dealer

Survey Express Services are the UK’s leading Crowcon approved dealer and authorised service center.

All equipment within the Crowcon range is available through our 6 regional offices employing fully trained service technicians who are Crowcon trained and approved to undertake all servicing and repair tasks.

Survey Express Services have been dealers for over 20 years and during this time accumulated first-hand experience in Crowcon’s superb range of personnel gas monitors.

Like our customer’s, Survey Express Services appreciate Crowcon gas monitors for their reliability, low cost of ownership and functionality in arduous environments.

We operate a hire fleet containing hundreds of Crowcon units, all supported by our service team maintaining these instruments to optimal performance.

If you are looking for a standard confined space Crowcon gas monitor, we hold these in stock. However, if your requirements are for more exotic gases like PID/VOC, chlorine and ammonia gases, we hold a specialist fleet ready for hire.

Chlorine is often utilised within the water industry to remove contaminants, so requiring personnel gas monitors with 5 gas sensors which we provide.

If you have a requirement for gas monitors or need a professional service center to manage your fleet, please contact your nearest office

Check out our extensive range of personnel gas monitors or if you have a requirement for servicing, please contact our service center

Crowcon Gas-Pro - Increased Gas Sensor Range

The Crowcon Gas-Pro is the newest member of the Crowcon personnel gas monitor range. Although only launched a few months ago, many customers have converted over to this superb instrument.

As discussed in my original blog ‘Confined Space Entry – is your gas detector right for the job?’, the Crowcon Gas-Pro has been designed to allow more sensor to be utilised with the instrument will less cross sensitivity or conflict. With the introduction of further sensors, the instrument can be configured for a wider range of applications other than confined space.

The following list provides scheduled dates of sensor releases

Scheduled for release in December 2011:
0-100 ppm ammonia (NH3)
0-5 ppm chlorine (Cl2) diffusion
0-1 ppm chlorine dioxide (ClO2) diffusion
0-20 ppm sulphur dioxide (SO2) H2S filtered
0-1 ppm ozone (O3) diffusion
0-100 ppm nitric oxide (NO)
0-20 ppm nitrogen dioxide (NO2)
0-2000 ppm carbon monoxide (CO) H2S and SO2 filtered
0-500 ppm carbon monoxide (CO) H2S and SO2 filtered
0-100 ppm hydrogen sulphide (H2S)
0-2000 ppm carbon monoxide (CO) H2 filtered

Scheduled for release from February 2012:
0-100% LEL pellistor type butane, pentane, toluene, ethylene & propane

Scheduled for release from March 2012:
0-100% LEL IR type methane, butane, pentane, toluene, ethylene & propane

This is not an exhaustive list – others to be included are: Dual IR 0-100% LEL / 0-100% Volume, 0-100% LEL hydrogen (H2), ppm measurement of VOC’s PID type, high level ammonia, ethylene oxide, ethanol, isopropyl alcohol, jet fuel (5), methanol, hydrogen chloride, hydrogen cyanide, hydrogen fluoride, methyl ethyl keytone, phosphene and phosgene.

Keep checking out our safety website for further configurations. If you have any requirements call our safety team on 0845 2575268.

Click for more information on the Crowcon Gas-Pro

Crowcon Detection Instruments

When sourcing a gas monitor, the first thing a customer always encounters is the vast array of instruments and manufacturers. In recent years, the choice has increased with the development of smaller, lighter models featuring larger screens, simpler functions and a greater array of sensors.

Instrument features are not the only consideration that should be taken into account, reliability, cost of ownership and functionality in arduous environments should always be at the top of the list of considerations when choosing a safety related product.

A range of instruments that can meet these considerations and more, are from the UK based manufacturer, Crowcon.

Crowcon Detection Instruments are specialises in developing toxic gas detection equipment. With over 40 years experience, Crowcon has developed a range of gas detection instruments that are extremely reliable and provides a low cost of ownership. We know, their gas monitors have been operating within our hire fleet for over 15 years.

Under the guidance of their parent company, Halam PLC, Crowcon is able to call upon extensive resources for the development of market leading products. Based in Abingdon, Oxfordshire, the company has grown to encompass sales and support centres worldwide with major hubs in North America, Netherlands, Singapore, India and China. 60% of sales are now outside the United Kingdom.

Crowcon’s range is comprehensive from small single sensors to industrial fixed systems. Their pioneering attitude has enabled them to develop innovative products, like their area gas monitors, the Detective+ allowing a large site to be monitored. Or my favourite, the new Crowcon Gas-Pro which can monitor up to 5 separate gases.


So why are they dependable?
Crowcon design their instruments for functionality, reliability and robustness above all.

Major investments has been undertaken to ensure the design team understand customer requirements. Product managers play a lead role in instrument development. They investigate core markets, keeping in touch with customer and application requirements. This ensures that Crowcon instruments meet industrial demands and ensures their instruments run at optimum performance.

When developing the latest personnel gas detection instrument for confined space applications, the develop team underwent confined space courses to understand application demands. This essential training help guide the development of the new Crowcon Gas-Pro gas monitor.

Specification of sensors is no different. The latest range of sensors has been tested to ensure that they can perform in the field. Dual sourcing enables Crowcon to employ several sensors

Increased Warranty
Crowcon’s philosophy is to look to the future. Advances made in the improvement in reliability have allowed the company to offer extended warranty on many of their products. The extended 2 and 3 year warranty reduces cost of ownership further and increase the life expectancy of gas detection instruments.


Crowcon’s Range

Crowcon Eikon - Gas Detector
A simple single gas monitor with a two year operating life. This disposable instrument is designed for specific single gas monitoring. The Crowcon Eikon does not feature a screen to simply the operation of the instrument – Simple with no frills.

Crowcon Gasman - Gas monitor
The Crowcon Gasman is a single button, single sensor gas monitor with a very wide of sensors.

Crowcon Tetra3 - Gas monitor
A leading gas monitor utilised by many civil engineering and chemical processing companies due to its rugged design. The Crowcon Tetra3 features a top mounted display to improve the user ability in confined space applications. Features chlorine and ozone gas sensor options.

Crowcon Tetra - Gas monitor
The Crowcon Tetra is a dependable gas detection instrument featuring four separate sensor bays with an internal pump option.

Crowcon Gas-Pro - Gas monitor
The newest member of the Crowcon range. A completely new design for confined space applications. This instrument can be configured 5 gas sensors with a greater emphasis on reducing conflict in sensors in order to provide the most versatile gas monitor on the market.

Crowcon Triple Plus + gas monitor
The Crowcon Triple+ has been a long standing reliable gas detection instrument. The instrument design combines a rugged, reliability, ease of use design with a fully flexible range of sensor combinations for flammable gases, oxygen and toxic gases.

Crowcon Triple Plus + IR gas monitor
Triple Plus + IR is the latest version of the Triple Plus + utilising infrared sensing technology for detection and measurement of flammable hydrocarbons. IR sensors are suitable for both high gas concentrations and for use in inert (oxygen free) backgrounds. The unique design of the Crowcon IR sensor module used in Triple Plus + IR allows measurement of hydrocarbons at both %LEL and % volume ranges making this instrument ideal for tank and line purging applications.

Crowcon Detective – Area Gas Monitor
This unique gas detection instrument provides a dependable area gas monitoring. Link a number of units together and a large area can be covered under their umbrella, ideal for large engineering projects.

For more information on safety equipment

For a full range of gas monitors

1 Sensor Gas Monitor

2 Sensor Gas Monitor

3 Sensor Gas Monitor

4 Sensor Gas Monitor

5 Sensor Gas Monitor

Confined Space Entry – is your gas detector right for the job?

Working in confined spaces is difficult at the best of times. Operators often have to wear full PPE (personal protective equipment), are usually harnessed and may be carrying tools and equipment.

The last thing a worker in this arduous environment needs to worry about is his or her gas detector. It should be designed specifically for confined space entry (CSE) applications, be unobtrusive and have a clear display that is easy to see at a glance.

There is a wide range of safety equipment required for CSE environments, but gas detection is one of the most important and commonly overlooked instruments.

Users of gas detectors have typically had to make a choice between pumped units, diffusion models, or with ‘parasitic’ pumps. Handheld detectors are supplied in differing sizes and many are not optimised for confined space work.

So, what are the requirements of the ‘ideal’ CSE gas detector?

Crowcon has undertaken extensive market research among users and fleet managers. This has identified five essential features:

• Simple to use
• Bright, easy to read display
• Long battery life (for at least one full shift, and preferably two)
• Robust design and construction
• Reliable detection (unreliable detectors can quickly holt a project)

These features may all seem obvious, but finding a gas detector that includes all of them, has, until now, been impossible.

With this feedback in mind, Crowcon went back to the drawing board. The result is the newly launched Crowcon Gas-Pro, a design perfectly for CSE applications.

Specific CSE features of the new Gas-Pro include:


Compact size
The Crowcon Gas-Pro has been kept to a minimum size. It is designed so as not to get in the way of other PPE device and not to interfere with the worker’s primary activity.

Top Mounted Display
Unlike other gas detection instrument, Crowcon has developed the Gas-Pro with a bright, top-mount display that can be read at a glance without having to even touch the detector.

+ve Safety
Unique to the Crowcon Gas-Pro, +ve Safety provides tri-colour status indication, giving quick and effective monitoring of gas test (bump), calibration, over range and recent alarm notification. The indication light is visible to all, offering the fleet manager a quick, simple, yet comprehensive visible indication of monitor status.

Multiple Gas Sensors
Multiple gas sensors for up to five potentially hazardous gases from an extremely wide range of sensors and configurations. Crowcon has spent considerable investment into sensor design to eliminate potential configuration issues.

Enhanced Construction
The Crowcon Gas-Pro is extremely rugged and has IP65 &IP67 ingress protection with an extremely loud >95 dB alarm as well as a vibrating and dual colour visual warnings as standard.

Internal Pump
An internal pump means that pre-entry testing can be done quickly and easily. Problems of poor sealing and the need for extra equipment associated with parasitic pumps has been removed.

The Crowcon Gas-Pro is a new category of product designed for just one purpose – ensuring gas safety in confined spaces. Free from worries about what risks might come with compromise, personnel entering these spaces will be more focused on their core activities, safe in the knowledge that their gas detector is focused on its core activity.

Click for more information on the Crowcon Gas-Pro