Ward & Isolation room leak tester

The Portascanner® COVID-19 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 airflow rate through it, and estimating the air permeability of the structure or room as a whole.

The Portascanner® COVID-19 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 airflow rate through it, and estimating the air permeability of the structure or room as a whole.

Portascanner COVID innovateUK

Ultrasonic air permeability tester


The Portascanner® COVID-19 is a new technology developed by Coltraco Ultrasonics to help prevent the spread of airborne infectious diseases such as COVID-19 in clinical environments. After receiving a UK Government Grant and being assessed as “outstanding” by InnovateUK in early 2021, Coltraco Ultrasonics is proud to offer this valuable tool for airborne spread mitigation to the NHS and domestic and international markets.

Existing methods for airflow measurement are disruptive and costly and often do not allow operators to identify specific leak locations. Meanwhile, the Portascanner® COVID-19 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 patients and staff in situ.

The Portascanner® COVID-19 is used as a maintenance instrument for cleanrooms, isolators, dental practices, and hospitals. It allows maintenance operators to ensure complete airtightness or to ensure that the air permeability falls below the required maximum level. The air permeability reference value is adjustable in the settings, but by default it is set to 2.5 m³/(h·m²) at 50 Pa. This is the standard maximum, below which negative pressurisation cannot be reliably obtained according to BSRIA standards.

The instrument has the following capabilities:

      • Locating leak-sites
      • Quantifying leak cross-sectional areas
      • Calculating air flow rates
      • Calculating air permeability
      • Photographing leak sites
      • Recording & exporting the location and severity of leaks for reporting purposes

What makes ultrasonic leak detection better?

      • Capable of non-disruptive identification and quantification of leak sites to help in achieving adequate airtightness for pressurised rooms, without needing the room to be pressurised beforehand
      • Provides knowledge of size of leak (cross-sectional area) and air flowrate through it, relating each leak to air permeability requirements for compliance to healthcare standards
      • Know where your leaks are and their significance – avoid having to seal every opening in the room which can be time-consuming, disruptive, and cumbersome
      • Improve efficiency and quality of airtight 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 room or ward prior to the installation of FPE (Fan Pressurisation Equipment) meaning considerable resource may be saved by significantly reducing the risk of installing FPE in an unsuitable room

Features of ultrasonic air permeability tester

      • 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 room
      • 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 hospital ward personnel or by third party maintenance teams
      • Photographs and records are all easily transferable to other systems via USB

Benefits of ultrasonic air leakage tester

      • Ability to determine individual air leakage rates through specific walls, doors, seals etc.
      • Some current practices involve measuring the air permeability of the whole surface of the room in a time-consuming process and assuming that the leakage rate through a given section of it will be equal to: size of section / size of room surface x total room leakage rate. This is not likely to be accurate because certain areas will be more prone to leakage than others. Our instrument solves this by quantifying each individual leak.
      • Ability to determine the exact location of leaks, meaning remedial measures can be taken. This means one does not need to undergo the “patch and hope” procedure that is currently used.
      • Far quicker and much less troublesome than the alternative
      • Classified as maintenance equipment, not medical equipment, so does not require medical certification


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What's in the box

Portascanner COVID-19 receiver hand

Portascanner COVID-19 19.7 inch touchscreen tablet receiver

Ultrasonic sensor for identifying exact location and volume of leak sites 

Ultrasonic Generator with variable power and magnetic sensor mount 

Recharging cable 


Coltraco USB drive 

USB splitter

USB WiFi adaptor 

Operating Instructions 

Calibration certificate 

Hard wearing carrying case

Generator tripod stand

Techical specifications - Receiver


225mm x 135mm x 35mm


1,051g (37.07 ounces)


Visual via UI Display or audible via external headphones

Metric or imperial units available

Measures cross-sectional area of leak sites


0.5mm hole diameter

Power Supply

Rechargable LiPo Battery

Battery Life

6+ hours intensive use 


7-inch capacitive touchscreen, LCD back-lit 1024×600 resolution display 


8 megapixel camera on rear of device

Operating Temperature

-10C to +65C / 67F to 160F

Techical specifications - Generator


Portascanner COVID-19 generator

112mm x 67mm x 25mm

137g (4.83 ounces)


Single 40kHz transducer

Variable power settings 

Power supply

Rechargable LiPo Battery

Battery life

6+ hours use

Mounting method

Tripod optional or manual positioning 


Download Portascanner COVID-15 Brochure

For basic product information, please find below. If you have any other questions, please contact us directly.

Frequently asked questions

What materials can the Portagauge 5 test?

The portable ultrasonic thickness gauge can test any type of metal and most hard plastics. The most popular metals include steel, aluminium, copper and popular plastics include PVC, Polyethene and fibreglass to name a few!

How accurate is the Portagauge 5?

The Portauage 5 is accurate at testing true material readings (ignoring surface coatings) to within 0.01mm

How to test sprinkler pipes?

The Portaguage 5 can be used to test any sprinkler pipe or other metal piping to identify areas of corrosion, locations where there has been considerable erosion, areas of fungal deterioration and other forms of metal ware. The testing process involves carrying out a series of spot checks along the bottom of the pipe. It is on the bottom of the pipe where liquid will naturally pool and thus where you are much more likely to have areas of heavy corrosion. The user simply goes down the entire length of the sprinkler pipe and continually monitors the pipe thickness and the waveform. Both should be consistent along the full length of the pipe. As soon as the thickness or the waveform begin to deviate significantly, (and they will normally do so together) the equipment has identified an area likely to be compromised and thus further physical & visual inspections will be required.

Do I need training to use the Portagauge 5?

This equipment is incredibly easy to operate, and no dedicated training is required in order to use the unit. We provide operating instructions which is normally enough to provide an operator with confidence and the required knowledge. However, every Coltraco unit comes with free technical support for the lifetime of the equipment so if you do need any further assistance, our technical team are on hand to support

How long does it take to deliver the portable thickness gauge?

These units are almost always available ex stock from the UK. Delivery to the UK is normally next day, Europe in 2 – 3 days and most of the rest of the world in 3 – 4 days from order. Please contact our sales team for an update on availability and for any other questions.

I don’t need to ignore the paint layer. Will this still work for my needs?

The short answer is yes and normally triple echo thickness gauge technology can be used for any thickness measuring applications. We do also offer our Portagauge 3 technology however which uses single echo technology and will measure paint & material as one reading.

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