Get Peace of Mind 24/7 with “PERMAMASS® FEATHERWEIGHT”

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Introducing our brand new “PermaMass® FEATHERWEIGHT.

A brand-new technology for total flood fire suppression systems in high-pressure seamless cylinders by Queen’s Award winning, Coltraco Ultrasonics and the Durham Institute of Research, Development & Invention.

PermaMass® FEATHERWEIGHT is the world’s first dedicated three-gas-system to continuously monitor high pressure fire suppression agents, such as Inergen™, Carbon Dioxide (CO2) and Clean Agent cylinders with combined Nitrogen; Reporting loss of agent quantity in real-time, un-affected by temperature.

The PermaMass® FEATHERWEIGHTis a fixed 24/7 fast-acting weight monitoring system for Inert Gas, CO2 and Clean Agent Fixed Fire Suppression Systems.

Get complete peace of mind that your system is fully protected – 24/7

  • Highly accurate: within 1% of true agent weight and within 1% for pressure loss in Inergen™ systems above 10 kg agent weight.
  • Hot Climate: operates on CO2 at high temperatures, where liquid level testing is not possible.
  • Risks: can be identified earlier allowing planned remedial action to take place without the need to shut down the fire suppression system.
  • Easy Installation: ideal for retrofitting along with full refits of your fire suppression systems.

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