Fever screening thermal imaging system

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AMETEK Land Releases Technology to Help Contain Threat of COVID-19
AMETEK Land has released a fever screening thermal imaging system designed for highly accurate human body temperature measurement, which could play a fundamental role in helping to contain the spread of COVID-19.

The vIRalert 2  fixed thermal imaging system provides an accurate and remote surface measurement of body temperature, automatically alerting the operator to elevated temperatures

This proven technology calibrates the thermal image with a blackbody calibration source in real-time to provide a system accuracy of better than 0.5°C and can therefore detect even small temperature changes induced by a fever. As a result, the vIRalert 2 system provides accurate and reliable skin temperature measurement for screening at point-of-entry into key facilities, like offices, factories, warehouses, schools, government buildings and any other places where infectious diseases can easily spread.


vIRalert 2 Brochure (EN)

vIRalert 2: Human Body Temperature Measurement System 
In a world where global travel means infections can pass through populations fast, the ability to screen people for fever is a key tool in reducing the risk of disease spread.

The vIRalert 2 fixed temperature monitoring system provides remote measurement of human body temperature (typically the face) to an accuracy of within 0.5°C enabling the detection of the small changes in temperature induced by a fever. 

Most economical thermal imagers can only achieve accuracy to within 2°C which is not adequate to detect a fever however by calibrating an imager in real time against a precise blackbody calibration source the vIRalert 2 system can provide accurate and reliable skin temperature measurement for the screening of personnel at point of entry to areas like airports, train stations, key operational facilities and factories and other places where infectious diseases can easily spread.

Using simple and intuitive software, this point-of-entry system provides automatic on-screen and audible alarms to alert the operator so that early action can be taken to protect the premises against the risk of spreading the infection.



  • Instant non-intrusive measurement using infrared thermal imaging technology with market-lead temperature measurement accuracy.
  • Monitors for high temperature without slowing down the flow of people.
  • Fixed remote measurement removes the risk of infection transmission to operators. 
  • Complete On-line System Solution works out of the box and is simple to operate.
  • Quick and easy to install and re-locate as required with standard camera fitting for flexible mounting options.
  • Automatic alert function reduces potential for human error and immediately alerts the operator if trigger point reached.


  • Transport and Travel Airports, Railway Stations, Subways, Underground Rail Systems, Large Public Buildings
  • Education Schools, Colleges, Universities, Municipal Libraries
  • Business Manufacturing Facilities, Warehouses, Offices, Government Buildings



  • Thermal Imaging Camera - Continuously measuring 30 to 45°C / 86 to 113°F, with a 39 x 31° field of view and 80 x 64 resolution gives 5,210 temperature data points per frame, at a rate of 9 Hz.
  • Certified Blackbody Heat Source - Providing a trusted reference temperature value calibrated at 38 °C / 100.4 °F for the thermal imaging camera with a large plate for viewing at longer distances.
  • Connecting Cables - Ethernet and Power between camera and laptop (5m / 15ft).
  • Flexible Mountings - Camera supplied with wall mounting bracket and standard 1/4-20 UNC thread for use with alternative mounting options. Wall mounting lugs on calibration source enable easy fitting with wall hooks.
  • Screening Software - Continuous or still image showing normal temperature in black and white with abnormally high temperatures in red. On screen and audio alarm triggered if potential fever detected. Supply of Windows 10 Laptop for running software is optional.
  • Calibration - Each system is calibrated at our ISO17025 accredited facility in the UK.


A typical detection distance of 1 metre,  provides a field of view of 70 x 55 cm so that checks can be made without any contact with the operator.



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AMETEK Land (Land Instruments)
AMETEK Land (Land Instruments) is the world’s leading manufacturer of monitors and analysers for industrial infrared non-contact temperature measurement, combustion efficiency and environmental pollutant emissions.

Through our trusted range of leading-edge technologies, we are chosen the world over to deliver the highly accurate measurement solutions that precisely meet every customer’s process needs.

With unrivalled applications knowledge, choosing AMETEK Land ensures the highest standards of process safety, process control and product quality are reached.

AMETEK Land is part of the Process & Analytical Instruments Division of AMETEK, Inc., a global supplier of high-end analytical instrumentation.

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