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Personal gas monitors
Personal gas monitors for workplace gas hazard detection and compliance. Portable single- and multi-gas detectors measuring O2, LEL, H2S, CO, VOCs and toxic gases. Audible, visual and vibrating alarms. Data logging and connectivity. Confined space entry, leak detection and industrial hygiene in oil and gas, utilities, wastewater, labs and manufacturing.
Personal gas monitors - helping you find the best solution for your project.

FLIR GFx320 - infrared camera for detecting gas emissions
The FLIR GFx320 is an ATEX-certified infrared camera capable of finding methane emissions or other Volatile Organic Compounds (VOCs). It can detect even minor gas emissions and will quickly and effectively survey critical zones. Gases detected: Benzene, Ethanol, Ethylbenzene, Heptane, Hexane, Isoprene, Methanol, MEK, MIBK, Octane, Pentane
FLIR G620a - Advance OGI for broader gas detection
Gas leaks are often invisible—but the FLIR G620a brings them into clear view with exceptional accuracy. Designed for fixed installation, this cooled OGI camera offers continuous monitoring, making it perfect for upstream and midstream facility applications: high-resolution IR sensor (640?×?512) with NETD <?15?mK @?25?°C enables visualisation of
FLIR GF320 infrared camera for the detection of methane or VOCs
The FLIR GF320 infrared camera is capable of finding methane emissions or other volatile organic compounds (VOC). Can detect very small gas leaks in real time and is ideal for monitoring plant and equipment in hard to reach areas. FLIR GF320 visualises and pinpoints gas leaks in real-time and can scan large areas rapidly. Thousands of components
Testo 340 - Industrial Flue Gas Analyser
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The Testo 340's compact design combined with reliable engineering makes it the ideal analyser for commissioning, service and maintenance work as well as measurements for monitoring purposes. More reliability, more convenience and even more parameters. The Testo 340 is equipped with an O2 sensor as standard. Three additional sensors such as COTesto 315-3 CO/CO2 monitor
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Testo 315-3 with Bluetooth. Parallel and direct CO/CO2 measurement in ambient air according to EN Standard 50543. Convenient, easy operation Measurement values transferable to testo 330: convenient, easy operation; data transfer to the testo 330; parallel CO/CO2 measurement; direct display of both gases; conforms to British Standard BS 6173:2009PHD6 multi-gas monitor
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With the capability to measure up to 6 gases in one compact personal portable monitor the PHD6 gives unrivalled protection. There are 18 different sensor options making it the most configurable gas detector on the market. A mixture of sensor technology can be accommodated. A Photo-ionisation Detector (MiniPID) is available for VOC measurementTesto 330-2 LL - Flue Gas Analyser
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The Testo 330-2 LL flue gas analyser is the perfect, portable, easy-to-use flue gas analyser for a wide variety of uses and applications. Our comprehensive, advanced analyser for the domestic and commercial Heating Engineer come equipped with the following: high-resolution colour display for the graphic representation of your measurement dataGas Alert Quattro gas detector
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Gas Alert Quattro is a hand-held multi-gas detector used for a wide range of industrial applications. It detect hydrogen sulphide, carbon monoxide, oxygen and combustible gases simultaneously, with a simple one-button operation. Its sensors perform in the harshest environments and are resistant to common industrial cross-sensitive gases, such as methanol and ethanol. It is compact and lightweight- PRODUCT
- Castle Group
Personal gas monitors - helping you find the best companies for your project.
- Badentoy Road, Badentoy Industrial Estate, Portlethen, Aberdeen, AB12 4YA
A1-CBISS
Manufactures turnkey analytical systems for gas monitoring of stacks, chemical processes, effluent outfalls and ambient air. A multi-gas / multi-channel analysing system can monitor up to six gas concentrations from eight different locations. Applications include leak detection in storage tanks and toxic gas alarm systems in the brewing, building
5 Valiant Way, Lairdside Technology Park, Tranmere, Wirral, CH41 9HSABLE Instruments & Controls
Manufactures a portable mercury vapour analyser utilising patented gold film sensor technology for high accuracy measurement over a range of 0.001 to 0.999mg/m3. Applications include waste and landfill sites, environmental surveys and pollution incidents. Also offers portable and permanent units capable of measuring low PPB levels of hydrogen
Cutbush Park, Danehill, Lower Earley, Reading, RG6 4UTAlpha Electronics
Offers portable gas monitors which measure concentrations of oxygen, carbon monoxide, hydrogen sulphide, and inflammable gases. Units have audio and visual alarms as well as temperature and humidity displays, and are suitable for use in hazardous industrial environments
Unit 6 Spectrum Business Estate, Bircholt Road, Parkwood, Maidstone, ME15 9YPAlpha Moisture Systems
Manufactures dewpoint meters and hygrometers for the measurement of trace moisture in gases and dry compressed air. Options include single or multi-channel configuration, portable and online analysers, and 4/20mA transmitters. Instruments are available to cover a range from 20°C to -110°C dewpoint
Alpha House, 96 City Road, Bradford, BD8 8ESAnalox
Manufactures portable and fixed gas monitors and sensors for specialist applications. Includes personal single gas monitors, with datalogging facilities for oxygen and toxic gases, which have 3 alarm levels (time weighted average, short term exposure limit, peak level); a portable multi-gas monitor with 1 oxygen, 1 combustible and 2 flammable gas
15 Ellerbeck Court, Stokesley Industrial Park, Stokesley, Middlesbrough, TS9 5PTAshtead Technology
Rental of gas analysis equipment ranging from indoor and ambient air instruments to continuous emissions systems. Lightweight toxic gas monitors for carbon monoxide or hydrogen sulphide protection feature audible and visual alarms, and an easy-to-read top-mounted display. Airborne toxic mercury vapour monitors are also available for spill response
Ashtead House, Discovery Drive, Westhill, AB32 6FGATP Instrumentation
Supplies a range of gas detection equipment and alarms. Offers ATEX-approved personal gas detectors. Robust and fully weather protected, the detectors have a shockproof internal construction and use self-checking software to assure reliable gas detection in arduous environments. They cover flammable gases, hydrogen sulphide, carbon monoxide and
Tournament Way, Ivanhoe Industrial Estate, Ashby-de-la-Zouch, LE65 2UUBIRAL
Supplies a range of monitors for testing environmental emissions in both atmospheric and indoor environments. A portable flame ionisation detector analyses VOCs in locations including landfill sites, sewers and chemical factories. An indoor air quality monitor tests the parameters of CO2, temperature and humidity
Unit 8, Harbour Road Trading Estate, Portishead, Bristol, BS20 7BLCasella
Manufactures personal datalogging gas detectors. Feature interchangeable smart sensor modules giving instant reconfiguration without calibration. Instant, TWA and STEL alarms for comprehensive coverage of potential hazards
Regent House, Wolesley Road, Kempston, Bedford, MK42 7JYCastle Group
Monitoring gases in the workplace has become a lot easier in recent years with the development of multii-gas monitors. Our personal gas monitors are small, easy to use and can work in tough environments. Every gas monitor comes with a range of options to enable you to measure the right gases, with either single gas monitors or measuring up to 5
Salter Road, Scarborough Business Park, Scarborough, YO11 3UZ- Nelson Court, 1 Flagship Square, Shaw Cross Business Park, Dewsbury, WF12 7TH
City Technology
Manufacturer of electrochemical, catalytic bead and infrared gas sensors. Miniature models for monitoring toxic and combustible gases and oxygen levels are designed for use in portable safety instruments where space and power consumption is limited. The sensors small size enables several gas types to be housed in the same instrument for multi-gas
City Technology Centre, Walton Road, Portsmouth, PO6 1SZClipperTech
Supplies instruments for the measurement of gas and steam, encompassing such parameters as pressure, humidity, temperature and flow. Unlike other personal protection monitors, products offer the ability to monitor five gases simultaneously, including low levels (ppb) of volatile organic compounds. This is especially suitable for confined space and
Station House, 4 Station Road, Oakley, KY12 9QFCrowcon Detection Instruments
2–6 Blacklands Way, Abingdon Business Park, Abingdon, OX14 1DYDraeger Safety UK
Supplier of gas monitoring and measuring equipment. Reaction tubes are suitable for short term and long term monitoring requirements including personal exposure and emissions measurements. Over 1000 gases and vapours can be detected. Complementary sampling pumps available. Draeger also offers personal single gas monitors with audio / visual
Ullswater Close, Blyth Riverside Business Park, Blyth, NE24 4RG

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