Be 100% sure you can fight a fire 24/7 with PermaMass® FEATHERWEIGHT.

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If you want peace of mind that your fire suppression system can respond at any time, then the PermaMass® FEATHERWEIGHT is for you. 

It continuously monitors the loss of agent quantity caused by leakage in high-pressure seamless cylinders containing inert gas, clean agents, CO2 and others. It is the world’s first comprehensive 3-gas system.


  • Continuously monitors gas loss caused by leakage 
  • Provides alerts 24/7 – it’s like having a fire safety engineer watching all the time
  • Easy Installation – Ideal for retrofitting existing systems
  • Functions at high temperatures – Ideal for monitoring CO2 in hot climates
  • Digitally-based, accurate, and cost-effective 
  • Scalable and efficient, making it suitable for facilities of all sizes

Key features of PermaMass® FEATHERWEIGHT:

  • High accuracy: Offers accurate measurements within 1% of the true agent weight and pressure loss in Inergen™ systems weighing above 10 kg.
  • Early Risk Identification: Designed to detect risks earlier, which allows for planned remedial actions to be taken promptly without the need to shut down the fire suppression system.
  • Safe: No Maintenance disruption.

Take control of your fire suppression system today with the PermaMass® FEATHERWEIGHT.

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