Ultrasonic watertight integrity & hatch cover tester

Portable instrument for assessing watertightness, locating and quantifying water leaks, and predicting water flow rates. 

The Portascanner® WATERTIGHT PRO is a unique ultrasonic technology from Coltraco Ultrasonics capable of identifying the exact location of any leak site within a structure, measuring the physical size of the leak, calculating the rate of water flow through it, and providing the ability to record and report observations.

P/N: 509004-PRO
NSN: 6625-99-257-8336
IMPA MSG P/N: 652778


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Ultrasonic WATERTIGHT PRO Integrity Tester

The Portascanner® WATERTIGHT PRO is a new technology developed by Coltraco Ultrasonics to enable an advanced scientific assessment of the safety of vessels with regard to risk of water ingress.

It is the first instrument of its kind able to easily and non-invasively locate leaks in seals or structures, while also calculating the expected rate of water ingress under any specified pressure condition. The user need only input the maximum expected water pressure (in either bar, psi, metres head, or feet of head) according to regulations or the position of the leak relative to the water line. Once the measurement procedure has been undertaken, the instrument will then automatically calculate the maximum expected flowrate.
Existing methods for water flow measurement are disruptive, costly, and unreliable. Hose testing, for example, may damage cargo and contribute to the degradation of seals, without achieving a precise measurement of the flowrate. Meanwhile, the Portascanner® WATERTIGHT PRO is the only device worldwide capable of quickly, reliably, and non-invasively locating and quantifying leaks and the first to use ultrasound to directly measure leak sizes. It is a hand-held instrument that, with minimal training, can be deployed regularly with crew in situ.

The Portascanner® WATERTIGHT PRO is used as a maintenance instrument for watertight seals, doors, cable transits, and bulkheads. It allows maintenance operators to ensure complete watertightness or to ensure that the flowrate falls below a required maximum level.

The instrument has the following capabilities:

  • Locating leak-sites 
  • Quantifying leak cross-sectional areas 
  • Calculating water flow rates 
  • Using metric and imperial measurement systems 
  • Photographing leak sites 
  • Recording & exporting the location and severity of leaks for reporting purposes 
  • Facilitating additional comments such as those formed from visual inspection 

Unique Selling Points


  • Capable of non-disruptive identification and quantification of leak sites to help in achieving adequate watertightness, without needing the compartment to be subject to water ingress 
  • Provides knowledge of size of leak (cross-sectional area) and water flowrate through it, relating each leak to requirements for compliance to regulatory standards 
  • Know where your leaks are and their significance – know if and when a seal requires replacing 
  • Improve efficiency and quality of watertight room maintenance – locate leaks, accurately predict the leak site size and its significance, seal the leaks that matter 
  • Provide evidence of your maintenance programme – locate, quantify, and record leaks as well as photograph and export a test report all in one hand-held instrument  
  • Grants the user the ability to fully assess a compartment or vessel prior to and during transit, meaning risks can be identified as early as possible 



  • The ability to switch between ‘quick test’ and ‘full test’ modes, the former for quickly locating leaks and creating a record of their locations, and the latter for quantifying them 
  • Different power settings for the generator and gain settings for the receiver to allow accurate testing regardless of the size and shape of the compartment 
  • The ability to filter records by date or location in order to export the desired records via USB 
  • Portable and easy to use in a 7” hand-held tablet format – can be used in-house by crew or by third party maintenance teams 
  • Photographs and records are all easily transferable to other systems via USB



  • Ability to determine individual water leakage rates through specific walls, doors, seals etc. 
  • Ability to determine the exact location of leaks, meaning remedial measures can be taken. This is far more accurate and reliable than procedures such as chalk testing. 
  • The process is quick and procedural 

What's In The Box

  Portascanner® WATERTIGHT PRO 7-inch Touchscreen Receiver Unit:
  Receiver Wand :
  Receiver Wand Attachment :
  BNC Cable:
  Portascanner® Ultrasonic Generator:
  Charging Cable :
  Headphones :
  Coltraco USB Drive:
  USB Splitter :
  USB WiFi Adaptor :
  Operating Instructions :
  Calibration Certificate :
  Hard Wearing Carrying Case :
  Generator Tripod Stand (optional) :

Technical specifications

Technical Specification

Main Receiver Unit: 225 x 135 x 35mm (8.86×5.31×1.38 inches)

Precision Generator: 112 x 67 x 25mm (4.4 x 2.6 x 0.98 inches)

Wide Range Generator: 215 x 82 x 30mm (8.5 x 3.2 x 1.2 inches)


Main Receiver Unit: 1051g (2.3 lbs)

Precision Generator: 137g (0.3 lbs)

Wide Range Generator: 420g (0.9 lbs)

Receiver Readings
  • Visual: Displayed on user interface as percentage and in decibels (dB SPL)
  • Audible: Ultrasound converted to audible frequencies. Played via headphones (provided)
  • Quantifies: cross-sectional area of leak sites and predicted flow rates
  • Units: Metric and imperial available (via settings)
  • Records: Takes and stores photographs using 8-megapixel camera and automatically generates reports that can be exported via USB

Detects and locates leaks as small as 0.06mm


Quantifies leaks between 0.5mm and 20mm in equivalent diameter to an accuracy of within ±10%


7-inch Capacitive Touchscreen, LCD back-lit. Resolution: 1024 x 600.

Generator Output

Precision Generator: Single 40 kHz transducer, variable power settings (1-100%)

Wide-Range Generator: Triple 40 kHz transducers

Power Supply

Main Unit: Rechargeable (micro-USB) LiPo battery, over 6 hours continuous use

Precision Generator: Rechargeable (micro-USB) LiPo battery, over 6 hours continuous use

Wide-Range Generator: 2 x PP3 9V battery, 12 hours continuous use

Operating Temperature

Ambient temperature range: -10°C to +65°C

IP Rating
  • Main Receiver Unit: IP65 (Enclosure), IP68 (USB Connectors)

CE, Manufactured in UK and Coltraco is ISO 9001:2015 and ISO 14001 approved

  • Main unit: 3 years
  • Sensor: 1 year
  • Lifetime customer support
Package Contents
  • 1 x Portascanner® WATERTIGHT PRO Main
    Receiver Unit
  • 1 x Portascanner® Ultrasound Sensor Wand
  • 2 x Aluminium Wand Sections
  • 1 x Wand Handle
  • 1 x 5cm Sensor Positioning Guide Wand Attachment
  • 1 x Portascanner® Precision Generator
  • 1 x Portascanner® Wide Range Generator
  • 1 x Tripod Stand and Clamp
  • 1 x Pair of Headphones
  • 1 x Micro-USB Charger
  • 1 x USB Thumb Drive
  • 1 x USB WiFi Dongle
  • 1 x USB Splitter
  • 1 x Operating Manual
  • 1 x Calibration Certificate
  • 1 x Robust Carrying Case

See the Portascanner® WATERTIGHT PRO in action.

Frequently asked questions

The Portascanner® WATERTIGHT PRO has the highest accuracy of any leak quantification instrument of its kind. Our in-house experiments have demonstrated a high level of accuracy (within ±10%) in leak-size quantification, which has been independently verified by the National Physical Laboratory. Flowrate accuracies are subject to user error in input measurements such as seal thickness and roughness, as well as the shape of the leak, however, our empirical formulae are calibrated to the upper error bound, so you can be sure that the true waterflow rate will not significantly exceed the calculated value.
No, the Portascanner® WATERTIGHT PRO can be used with people in the room, as long as they do not directly interfere with the test (i.e. standing directly between the generator and receiver).
To some extent, yes, however the application will guide the operator through finding an optimal position for the generator. Generally, though, the generator should point directly at the structure to be tested, positioned with transducer approximately centred on the structure at a distance of between 0.5 and 5 metres.
No, it does not matter, the test should be performed from whichever side is most convenient and practical. For example, if the operator is testing a door that leads onto a corridor, we would suggest placing the generator inside the room and performing the measurements from the corridor so as not to obstruct the full width of the corridor.
Yes, there is no complicated equipment required for a test, just the generator and the hand-held Portascanner® WATERTIGHT PRO unit. In the case of an emergency, the operator may simply leave; all that may happen is the generator will use battery power and may need to be recharged.
Currently, a USB drive is required to export the reports. This will be included in the package; however, any USB drive can be used.

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P/N: 2618949-PSO

Introducing the Portascanner® WATERTIGHT PLUS, the world-leading fully ABS Type-Approved & RINA-Accepted, the watertight integrity tester for inspecting watertight and weathertight seals on ships and marine structures such as warships and offshore oil & gas platforms.

The Portascanner® WATERTIGHT PLUS offers the functionality and display, all packaged into a smart, ergonomic, and rugged enclosure. With the implementation of three testing modes, the user has much greater control when testing a large variety of hatch covers and watertight structures.

A new user interface upgrade now allows the user to switch between Linear, Decibel (dB) and an Open-Hatch mode (specific for testing hatch covers) displaying the percentage leak, making it even more efficient and user-friendly than its predecessor, the Portascanner® Watertight.

P/N: 509004-WTPLUS
NSN: 6625-99-257-8336
IMPA MSG P/N: 652778