Portascanner® AIRTIGHT

Ultrasonic Airtightness, Leak Detection and Quantification Equipment

Portascanner® AIRTIGHT is our most advanced ultrasonic room integrity testing tool, contributing to unrivalled airtightness. Portascanner® AIRTIGHT locates and quantifies even the smallest of leaks and can perform data analysis to present these results as indications of a room’s airtightness. This allows for quick testing with extreme precision for applications in the construction, maintenance, or medical fields.

P/N: 509004-AT


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Extreme Precision and Quantification

Coltraco Ultrasonics’ Portascanner® AIRTIGHT is the only instrument that gives you confidence to find, fix and seal air leaks with pinpoint accuracy, providing true insights and certainty for building airtightness, simply and quickly.

Portascanner® AIRTIGHT’s ultrasonic operation allows it to detect leaks as small as 0.06mm in diameter and quantify leaks as small as 0.5mm in diameter. Portascanner® AIRTIGHT’s computer can detect and collate data from multiple leaks in a single test which reduces the amount of tests which must be conducted in the case of multiple leaks. This makes Portascanner® AIRTIGHT’s ability to test the airtightness of a room industry-leading, and its quick and easy testing process establishes Portascanner® AIRTIGHT as the ideal tool for airtightness testing in Net Zero and Passive House construction projects.



Airtightness With Ease

  1. Portascanner® AIRTIGHT collates the data from individual leak sites and can present this in either raw form or as a proportion of the total airspace.
  2. This can be presented in terms of air changes per hour to give an indication of the extent of a leak’s impact on the overall airtightness of a room or structure.
  3. By taking a photo using the built-in camera, leaks can be plotted on a photograph of a test site and exported either wirelessly or by USB to make the repair process as easy and streamlined as possible.
  4. The two testing modes – quick test and full test – also allow for rapid retesting to assess the quality of a repair or modification.


Portascanner® AIRTIGHT is therefore a universal solution to testing airtightness, and its accuracy and ease-of-use facilitate Net Zero and Passive House construction in a way which is unmatched in the industry.


An Innovate UK Project

Portascanner® AIRTIGHT has been developed in part with research and development funding from Innovate UK. Coltraco Ultrasonics is a proud member of Innovate UK’s Net Zero Heat Cohort, working to provide technology to support the United Kingdom’s transition to Net Zero. We proudly offer Portascanner® AIRTIGHT to the global market as a shining example of British innovation and invention to support sustainability.

What's In The Box

  Portascanner® AIRTIGHT: Main Receiver Unit
  Portascanner® Ultrasound Sensor Wand: With Flexible Head
  Portascanner® 3-Transducer Ultrasonic Generator: Wide Range
  Portascanner® 1-Transducer Variable Ultrasonic Generator: Variable Power
  4 x Aluminium Sections and 1 x Sensor Handle: Sensor Rod Extensions
  5cm Sensor Positioning Guide: Ensures Consistent Measurement
  Tripod Stand and Clamp: To Mount the Generator
  Headphones: For Audio Indication of Leak Detection
  Micro-USB Charger: To Charge the Units
  USB Stick: 2GB
  USB WiFi Dongle: Allows Internet Connectivity For Remote Updates
  USB Splitter: For Simultaneous Connectivity
  Operating Manual: Guidance On How To Use The Equipment
  Calibration Certificate: To Verify Device Functionality And Calibration On Dispatch
  Robust Carrying Case: To Store The Equipment

Technical specifications

Technical Specification

Main Unit: 225x135x35 mm (L x W x D)

Generator: 112x67x25 mm (L x W x D)

Unit Weight

Main Unit: 1051g

Generator: 137g

Power Supply

Main Unit: Built-In Rechargeable Li-Po Battery (Micro USB)

Generator: Built-In Rechargeable Li-Po Battery (Micro USB)

Battery Life

6 Hours of Continuous Use

Sensor Type

35mm Flexible Sensor Wand

Sensor Connectivity

1.5m BNC Coaxial Cable

Generator Frequency

40 KHz

Operating Temperature

-10°C to +65°C (14°F to 149°F)


7.0" 1024 x 600 Capacitive Touchscreen


8-megapixel camera on rear of device

Minimum Leak Detection

0.06 mm ±0.02mm Leak Diameter



Registrations and Approvals

UKCA, CE, Coltraco is ISO 9001 and ISO 14001 registered


Main Unit: 3 years

Sensor Wand: 1 year

Technical Support: Lifetime of the Unit

See the Portascanner® AIRTIGHT in action.

Frequently asked questions

In some circumstances, our Portascanner® AIRTIGHT may be able to serve as a complete replacement for a door fan test (or other pressurisation test). In many cases, however, the pressurisation test is mandated by regulations, and in these cases, the Portascanner® is a complementary diagnostic and analytical tool, that will help you pass the pressurisation test first time. It will also provide a far higher level of confidence and robustness for any follow-up maintenance, so you can be sure that once a room is airtight, it stays airtight.
We usually recommend placing the generator as far from your test structure as possible. whilst maintaining sufficient readings, particularly when you want to quantify leak sites. This is because, due to the diffusion of sound as it travels through air, at greater distances we have more consistent readings across the entire structure. However, if space is an issue and you cannot avoid placing the generator close to the structure, the Portascanner® AIRTIGHT has both a variable output power on the generator, as well as variable gain settings on the receiver.
Ultrasound, when incident on even a very small leak or crack in a structure, will find its way through the leak and be picked up by an ultrasonic sensor. However, clearly not all of the ultrasound will make it through the leak, as the majority will be reflected or absorbed by the structure. From this understanding, we developed sophisticated algorithms so that, with some careful measurements, the Portascanner® AIRTIGHT is able to compare the relative intensities of the ultrasound incident on and passing through the leak, to accurately and reliably quantify its physical size.

Related Products

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P/N: 2618949-PSOPLUS


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

The Portascanner® is an ultrasonic room integrity testing tool, allowing you to locate even minor leak sites quickly, easily, and non-destructively. The perfect tool for ensuring and maintaining airtight integrity.

  • Type – Ultrasonic Room Integrity Tester
  • Function – To test the airtightness of sealed compartments/rooms
  • Part Number – 509004-520
  • NSN – 6625-99-257-8336
  • IMPA – 652778
  • Application – Used for detecting leaks in Energy Efficient Buildings, Construction, Passive House, Computer Rooms, Telecommunication Centres, Data Centres, Laboratories, Clean Rooms, Control Rooms, Manufacturing, Robotics, Storage

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