The Certified and Accurate Market Leader: Portalevel® range of ultrasonic liquid level indicators

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The Portalevel® range of ultrasonic liquid level indicators are unparalleled leaders in the monitoring of fire suppression systems.

Some competitor units hold no certification; whereas across our range of equipment we have UL, CE, UKCA and ABS; we are the global leader in the safe contents monitoring of pressurised liquefied gaseous extinguishing systems, in service in high-hazard and safety-critical environments globally.

We win tenders, because our equipment outperforms competitor units.

The accuracy of our unit means that it is in full compliance with the fire regulations globally which only allow 5% loss of contents, before the cylinder needs to be refilled. Lowered accuracy on competitor units can have difficulty in correctly finding liquid level within the regulatory tolerance.

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