Avoid catastrophic accidents with Portatank®

Subscribe for the latest industry news, technologies and resources.

We care about your data in our privacy policy.

How do you check oil level in transformers?

If oil has leaked away, and transformers are opened for maintenance, combustion can occur putting workers at serious risk.

We have a solution for you with our handheld Portatank®.

Use Portatank® to safely and non-invasively locate the oil level inside any transformer in seconds. If oil is at the correct level, it is safe to open. 

The unit can also locate liquid levels in large industrial tanks up to 15 metres wide.

Just a few seconds test can drastically reduce the risk to maintenance crews.

Portatank® Non-invasive level indicator for industrial tanks

NON-INVASIVE:Testing through the outer wall (no opening required).

QUICK TESTING: Easy to use, instant liquid level detection with very clear LED results.

VERSATILE: Identify levels of water/clean liquids in large industrial tanks.

ACCURATE: To +/-10mm with very clear LIQUID / NO LIQUID LED results.

TANK WIDTH RANGE: 0.5 metres – 15 metres.

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