To stop the spread of COVID-19, identify those with fever
Social distancing must be observed even indoors.
Thermal imaging cameras and people counting solutions are needed.


The spread of COVID-19 shows no signs of slowing down. Quarantine measures must continue until a fully tested vaccine is available. Crowded or confined spaces are prime locations for the virus to spread. Therefore, contactless screening for those with fever must be conducted as quickly and accurately as possible.

When using a thermal imaging camera, the body temperature of the subject is measured from a distance and displayed in an easily understandable image, so there is no need to make contact with or get close to the subject.

FLIR's existing ▲Exx-Series ▲T-Series ▲A-Series thermal imaging cameras detect temperature differences on the skin surface, helping determine whether or not someone with a fever should seek additional medical evaluation. Additionally, dedicated fever screening products, the ▲Axxx-EST Series ▲T5xx-EST Series ▲Exx-EST Series thermal imaging cameras, have been released.

However, purchasing a camera and activating its inspection mode doesn't mean you can immediately begin testing. The most important factors in fever screening are the installation method and configuration of the inspection window. Only by utilizing the correct products, inspection locations, and inspection procedures can we accurately identify each inspection target.


Preparation, process, and procedures for conducting fever screening
Each business and building has unique functions and needs, so it's important to tailor inspections to them, but all inspection windows adhere to the same basic principles.

△Guidance signs △Direction arrows △Queue signs are essential to ensure that people waiting for temperature screening can practice social distancing.

The screening background is also important. When conducting temperature screening, a non-reflective, brightly colored partition or curtain must be installed as the background. FLIR offers these temperature screening window backgrounds and floor stickers as a set or as individual accessories.

The location of the inspection window also affects the accuracy of the test. Ideally, the inspection window should be installed in a location where the indoor temperature is maintained at 20-24°C and the relative humidity is between 10-50%. Avoid locations with strong airflow, such as HVAC vents, direct sunlight, or heat sources. It is also best to avoid places with reflective backgrounds, such as windows and metal surfaces.

People in the queue should maintain an appropriate distance from each other, and the person being screened should maintain an appropriate distance from the camera, as well as from the camera and the screening staff. If testing must be conducted outdoors, tents or shielding structures should be used to minimize the environmental impact on the individual being screened.

Guidance from regulatory agencies on fever screening procedures includes recommendations such as screening one person at a time, allowing ample time for people with elevated body temperatures due to strenuous physical activity to regain their composure, and instructing people wearing glasses or masks to remove them before screening.

In addition, it includes: △Place the subject of the examination at a set distance from the camera and adjust the position so that the imaging area can include the entire face of the subject; △If a person is found to have a skin temperature higher than the standard, conduct an accurate secondary body temperature measurement using a medical device.


Comply with indoor social distancing and people counting solutions.
Even if fever-stricken individuals are screened at the entrance, asymptomatic carriers cannot currently be identified. This is where the person counting solution comes into play. The solution automatically tracks how many people are in a space, supporting social distancing in stores and other places and preventing overcrowding.

Real-time customer-facing displays inform people of permitted entry limits and report when a facility's capacity is reached, saving staff time and alleviating customer concerns about infection.

FLIR's Brickstream 3D Gen2 people tracking camera, a facility occupancy management solution, uses stereo vision to noninvasively track individual people.

Cameras are installed on the ceiling of each entrance, and a master camera collects the number of people entering and exiting from all cameras in that location, calculating the occupancy level in real time. Furthermore, since each individual cannot be identified, it protects customer privacy.