Portagas®!  A new way to measure Inergen Contents!

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Test Inergen™ System Pressure Loss Non-Invasively.

As market leaders for 30 years in testing liquified gaseous suppression systems such as CO2 & NOVEC® 1230, we spent 4 years developing a non-invasive solution for measuring pressurised, non-liquid inert gas systems and we now bring you Portagas®.

The first of its kind. To monitor inert gas cylinders such as Inergen™, easily and quickly in an intuitive Android platform.

The Portagas® detects minor changes in internal pressure, with precision comfortably exceeding the 5-10% agent and pressure loss thresholds cited in regulations such as NFPA 2001 and ISO 14520.

Intuitive: Know whether an observed change in pressure is due to changing temperatures or a loss of contents..

Reporting: Save your maintenance records, organised by date, time, site and cylinder.

Export data: Export your maintenance records as a CSV file or PDF report, via email or USB and enhance your service reports.

Regulation Compliance: NFPA 2001 & ISO 14520-1.

Inergen™ or Inert Gases are stored in seamless cylinders at pressures between 100-200 Bar. At such pressures cylinders are subject to slow seepage of contents or accidental discharge. If the gas available is not at the design concentration- the fire will not be extinguished.

Pressure alone does not tell the full story. To understand the status of a cylinder’s contents, we must consider the pressure and temperature together. This is because in a sealed container pressure is directly related to temperature. So, a change in temperature does not always mean that the cylinder has leaked.

Conventional pressure gauges typically address this by indicating a range of acceptable pressures based on different temperatures. This is a useful indication; however, these ranges are broad and open to user error.

The Portagas® tackles this issue head on, with an infra-red thermometer built into the sensor to record the temperature correctly. This temperature, combined with Fill Pressure and Fill Temperature (printed on the cylinder) precisely determines the current pressure. Portagas® calculates this automatically with no user input.

This temperature-adjusted pressure is then compared with the pressure determined acoustically by the Portagas®. This allows it to recognise if a change in pressure is due to changing temperatures or loss of contents, all with the tap of a finger.

Portagas® is the only way to get a true status on the cylinder contents.

Watch the Portagas® in action

Get in touch

You can reach us anytime via phone or email, we aim to respond to all enquiries within 24 hours (excluding weekends and bank holidays)


Come say hello at our Technical Laboratory.

Coltraco Ultrasonics
NETPark Research Institute
Joseph Swan Road
TS21 3FB

United Kingdom


Monday - Friday (excluding bank holidays) from 8:30am to 6:00pm, UK.

Tel (Sales & HQ): +44 20 7629 8475
Tel (Technical): +44 1740 618 240