24/7 Technical Support
Crowcon Detection Instruments Ltd is a market leader in supplying toxic gas detection equipment for safety and environmental monitoring needs. Crowcon products are sold throughout the world, serving oil, gas and petrochemical companies, public utilities, clean water and sewage treatment companies, fire brigades, construction companies and other organisations where accidental leakage of gas or vapour can become a toxic or explosive danger.


Crowcon Products

Crowcon Tetra:3 Intrinsically Safe Personal Multigas Monitor
Crowcon Tetra:3 Intrinsically Safe Personal Multigas Monitor

The Tetra:3 multi-gas monitor is the newest addition to the Tetra family. Tetra:3’s single button operation, small size and weight make it the easiest to use gas detector on the market.

Based on the proven and highly successful Tetra product, Tetra:3 is designed for use in demanding industrial environments. Despite it’s compact size the Tetra:3 is ultra-rugged and water proof.

Gases include the most common four (carbon monoxide, methane, oxygen and hydrogen sulphide), but also an expanded range: ammonia, ozone, sulphur dioxide, H2 filtered CO (for steel plants) and IR carbon dioxide (for safe area use only).

Crowcon Triple Plus+ 4 Gas Personal Monitor
Crowcon Triple Plus+ 4 Gas Personal Monitor

With over 60,000 units in use worldwide, our customers have come to depend on the robust and reliable performance of the Triple Plus+.

The extremely durable Triax™ case and internal construction makes the Triple Plus+ an industry favourite known for the ability to withstand even the most demanding of applications.Simple customisation to alternative flammable gas
correction factors.

Crowcon LaserMethane Mini (LMm-G)
Crowcon LaserMethane Mini (LMm-G)

The LaserMethane mini (LMm) is an innovative portable detector that allows methane gas to be detected from a distance. This enables easy access to hard-to-reach locations, such as elevated piping or locked premises, and helps keep the operator away from potential leak sources.

LMm is now available with a green laser guide light which is more visible especially under strong sunlight. The Laser Methane Mini-Green (LMm-G) combines the benefit of LMm with additional data storage functions and comes with Bluetooth capability, which can be connected to any android device (through the Gasviewer app) for a variety of data storage functions. Important data like location, gas levels and time can also be saved or emailed to a central point.


User friendly

  • Point and shoot technology - required little or no training and is easy to use
  • Compact and lightweight - truly portable
  • Green/Red guide laser light - clear visibility of where you are surveying
  • Wide organic electroluminescence display - clear and bright readout on screen


  • No moving parts - little maintenance required
  • Self-check and automatic calibration start-up - ensure accurate and reliable reading


  • Data storage - full data logging capabilities
  • Bluetooth and Gasviewer app - connectivity to android devices
  • Location service in Gasviewer app - display and save value as well as location and time on map