Best Ultrasonic Leak Detector 2025
As industries demand ever-higher standards of safety, compliance, and efficiency, it is important to determine which ultrasonic leak detector will lead the market in 2025.
August 26, 2025
The Portagauge® 6 is a multiple echo ultrasonic thickness gauge for measuring the thicknesses of various metals and rigid plastics, which ignores any coating up to 20mm in thickness. It has a built-in datalogger to store up to 200,000 thickness measurements and minimum thickness alarm functionality.
P/N: 2099382-6
NSN: 5520-99-382-6449
CAGE Code: KD983 – COLTRACO LIMITED
Easily measure material thickness through paint layers/coatings without removing them. It is able to ignore paint coatings up to 20mm in thickness, giving you the material’s true thickness readings accurate to +/- 0.1mm.
The Portagauge® 6 ultrasonic thickness gauge measures through protective coatings, providing accurate and reliable thickness measurements. This helps you to determine the level of corrosion or erosion without the risk of causing further corrosion damage.
Our ultrasonic multi-echo technology is compliant with Classification Societies’ requirements and ignores layers of paint or coating up to 20mm in thickness, which gives you an actual metal thickness ONLY with accurate readings to +/- 0.1mm
The Portagauge® 6 multi echo ultrasonic thickness gauge is a highly accurate and reliable thickness gauge for measuring the thicknesses of various metals and hard plastics, developed to meet BS EN 15317:2013 which is the standard for ultrasonic testing, characterisation and verification of ultrasonic thickness measuring equipment.
Some of the features of the Portagauge® 6 are:
Built in database of 14+ different materials containing speed of sound data and an option to enter custom materials
Battery life up to 12 hours continuous use on a standard 9V PP3 battery for easy replacement, with battery saving mode – turns off after 30 seconds of inactivity
Technical Specification | |
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| Dimensions |
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| Measuring Range in Steel | 1.50mm – 100.00mm |
| Material Types | Most metals and plastics, built-in database contains the following: Carbon Steel, Stainless Steel 304, Stainless Steel 316, Cast Iron, Ductile Iron, Copper, PVC, Lead, Nylon, Polyethylene (PE), Aluminium, Asbestos, Fibre Glass, Glass |
| Accuracy | +/- 0.1 mm |
| Resolution | +/- 0.01mm |
| Measurement Units | Metric (mm) and Imperial (inches) |
| Measurement Mode | Multiple Echo (ignores paint coating up to 20mm thick) |
| Datalogging | 4 MB internal storage for datalogging, capable of recording up to 200,000 thickness measurements. Logs include date, time, a user-set identifier and thickness measurement and can be downloaded to a PC via the micro-USB port. |
| Frequency | 2.25 MHz, 2.5 MHz, 5.0 MHz |
| Display | Full 128 x 68 pixel graphics with backlight for working in poor visibility conditions |
| Additional Features |
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| Power Supply | 9V PP3 battery, up to 12 hours continuous use with auto shutdown after 30 seconds of inactivity 24/7 power option via micro-USB port |
| Operating Temperature | Main Unit: -10°C to +65°C |
| IP Rating | Main Unit: IP 65 enclosure |
| Sensor Type | Dual element with 0.9m LEMO-00 cable |
| Sensor Options |
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Portasonic® PLUS is a portable ultrasonic transit-time flow meter designed to measure, internally record, and export the flow rate within a pipe with precision and ease. Portasonic® PLUS uses a customisable pre-programmed database to allow it to work with a wide variety of pipe materials and liquid types as a highly versatile monitoring solution that can be adapted for specific applications.
P/N: 2618949-PSOPLUS
CAGE Code: KD983 – COLTRACO LIMITED
The Permaflow® is a fixed, clamp-on, ultrasonic transit time flow and heat meter that is non-invasive for measuring the flow rates of liquids containing less than 10% of gas/solid contents. It is mains powered, designed for 24/7 monitoring and is accurate to +/- 0.5% of measured value under ideal conditions.
P/N: 3578010-FLOW
CAGE Code: KD983 – COLTRACO LIMITED
The Portatank® is a versatile, handheld, portable ultrasonic liquid level indicator for fast and reliable measurements. Powered by a battery, it provides a non-invasive way to measure the liquid level within tanks, making it ideal for industrial and commercial applications.
The device can accurately measure liquid levels in vessels ranging from 0.5 meters to 15 meters in diameter. Whether working with metal, plastic, or glass tanks, the Portatank® ensures consistent results across various materials.
P/N: 3141184-TANK
CAGE Code: KD983 – COLTRACO LIMITED
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