Extreme™ - Portable Single Gas Detector
Extreme™ is a rugged and reliable marine single gas detector that provides shipowners and managers with calibration free operation for the lifetime of the H2S, CO or SO2 detector (24 months or 36 month option for H2S).
The oxygen detector self calibrates when it detects normal oxygen conditions in the atmosphere.
The graphic LCD displays the number of months elapsed, the alarm set-points and history of peak exposure readings to protect crews and operators alike.
Single button operation - Simplest gas detector to operate
Unlike other portable gas detectors, a single push button design keeps operation simple for crew members of varying skill or nationality. The unit can easily be turned on and operated even when wearing protective gloves.
Unique fail safe 'REFLEX' sensor diagnostics
The unique and patented fail safe sensor diagnostics continually monitors the status of the electrochemical sensors, sending an alert when a sensor enters a fault condition.
World's lowest maintenance marine gas detector
The REFLEX technology means that no calibration is needed for the Extreme™. This allows you to get on with running your ships without complicated gas detector calibrations onboard or logistics for swapping or returning gas detectors to shore.
- Calibration Free Operation
- Fail Safe Sensor Diagnostic Technology
- Single Button Operation - Simplest Gas Detectors to Operate
- Type Approved
- Multi-language Options
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For more information about the Extreme™ or to request a quote click on the button below.
Associated Products

- Fixed Gas Detection Products
Gas detection is at the heart of the Martek Marine product range. Take a look at this overview of the systems we provide to see how we can help you meet your gas detection needs. 
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