Thermal Imaging Systems for Fever Screening

pomiar temperatury rysunek

For viruses and infectious diseases, rapid action is key to fight the threat. Many of them can be quickly detected by measuring body temperature. However, individual thermometer measurement is inefficient and paralyzes its flow in places with heavy traffic. What is more the person making the measurements himself is at risk of infection. The technology makes it possible to measure temperature on a large scale with minimal risk to persons operating the system. We present 4 options for this type of solution.


Option 1 – Fever Screening System, SATIR

Option 2 – Thermal Imaging System for Human Fever Screening, OPTOTHERM

Option 3 – Temperature Measurement Display with Face and Mask Recognition – WIP-C200C

Option 4 – Non-contact thermometer – K3


Thermal Imaging System for Fever Screening

The CK350-F is a fever screening system suitable to be used in areas where there are large groups of people such as airports, seaports and public places such as shopping centres. It is a fixed camera that has a powerful 384×288 IR detector which delivers 110,592 pixels to the end-user’s screen. The thermal video/images have a temperature measurement range of 0°C ~ +60°C and measurement accuracy of ≤ 0.3 ℃ which makes this ideal for fever screening programmes. It also comes with a range of temperature measurement tools which includes Motion detection, Disk alarm, I/O alarm, Temperature alarm and many more. The CK350-F allows non-invasive fever screening to take place meaning there is no major distruptions to the flow of people in an area.

The system consists of three elements: An IR camera combined to a video camera in one housing, an on-line temperature standard source (Black body) used to calibrate the camera, and computer software for information processing. The CK350-F system can detect up to 16 objects with elevated temperature per second. The image obtained from the cameras is recorded for later analysis. It is possible to expand the system with additional cameras.

The system allows real-time detection of people with elevated temperatures.

System Key Features

  • 384×288  IR Detektor
  • Accuracy ≤ 0.3 ℃ (Emission rate, distance, ambient temperature, etc..)
  • Specially designed optical system for medical diagnosis
  • Powerful analysis tools
  • Operation software optimised for medical diagnosis & analysis
  • Supported languages: English, Chinese, Polish, Italian, Portuguese, Spanish. Russian, French, Czech, Hungarian

Optotherm Thermoscreen IS640

Thermal Imaging System for Human Fever Screening

Optotherm’s fever screening technology provides the most accurate method of mass screening for elevated facial skin temperatures that may indicate a fever. Because it is both fast and noninvasive, Thermoscreen is the best way to safeguard areas with high pedestrian flow.

Thermoscreen was originally developed in response to the need to screen large numbers of individuals for potential fever during the SARS outbreak in 2003. Thermoscreen scans subjects without contact from a distance, providing a discreet and safe method of detecting potentially feverish individuals.

Over 1,000 individuals can be screened per hour so as not to restrict pedestrian flow. Thermoscreen is sold as a complete, fully tested system including a computer with preinstalled hardware and software.


  • Highest Sensitivity and Specificity
  • The effectiveness of Thermoscreen has been studied and confirmed by the U.S. Center of Disease Control.
  • Lowest Rate of Missed Detections and False Positives
  • Thermoscreen’s sophisticated measurement process involves precision calibration, face and movement detection, ambient temperature compensation, and subject group compensation. Together, these unique features provide unparalleled ability to reduce the number of missed detections and false violations. A low false violation rate allows Thermoscreen to be employed in applications where a high number of false positives are unable to be effectively processed.


A primary symptom of many infectious diseases is fever. This has lead to monitoring the temperature of pedestrians in hospitals, airports, corporate building companies, schools, and other public areas. Thermoscreen provides a non-invasive, non-contact method of screening large groups of people for elevated facial skin temperature quickly and easily. Potentially febrile individuals can be detected with minimal inconvenience and disruption to pedestrian flow.

Thermoscreen is best utilized as the first of a two-point fever detection process. At the entrance to crowded areas, Thermoscreen is used to detect individuals whose facial skin temperature is higher than normal. Fever is then confirmed using a medical thermometer. This two-point system enables large groups of people to be screened quickly and accurately to effectively prevent febrile individuals from entering areas where contagious diseases can spread easily.

System Hardware

  • Easy to setup and operate
  • < 0.04°C sensitivity; 0.3°C accuracy
  • Integrated visual camera
  • All-inclusive turnkey system
  • Mobile platform
  • No external calibration source required

Fever Screening Software

  • Simple user interface
  • Operator-free automated screening
  • Verbal commands and audible alarms
  • Ambient temperature compensation
  • Verifies subject is standing still
  • Verifies subject is facing camera
  • Violation image and movie display
  • Automatic data and image logging
  • Historical data display and graphing

Screening Site Example

A Thermoscreen system is placed at the entrance of a hospital to screen patients and visitors upon entering the building (see figure). When operating in Automated Screening Mode that requires each individual to stop briefly to be screened, a single Thermoscreen station can effectively screen up to 1,200 subjects per hour.

The Screening Process

Screenshot 2020-03-12 at 11.51.09 AM

Each subject is screened individually. Subjects are notified to “remove eyeglasses” (contact lenses do not need to be removed) and to “stand still and look at the camera.” Subjects can be notified verbally by the operator or by using signs positioned along the line.

The Thermoscreen System detects each subject’s face as they enter the screening zone and issues a verbal command through the computer speakers to “please stand still and look directly at the camera.” After verifying that the subject is standing still and facing the camera, the screening measurement is automatically conducted and the screening result is displayed. In the case of a fever threshold violation, the audible command to “please wait here for an attendant” is issued. If screening result = Pass, “thank you, you may proceed” is issued.

Operator 1 operates the Thermoscreen system, examines the Thermal and Visual Images of subjects, and confirms Fever threshold violations. Operator 2 directs subjects into and out of the screening zone and also directs subjects whose facial skin temperature exceeds the skin threshold to the nurse station for further evaluation. If subjects are queued in line properly, screening each subject requires approximately three seconds.

Note: When screening throughput is low, a single operator can perform the tasks of both operator 1 and 2.

Screening Area Setup

The screening area is climate controlled; the temperature varies from 20 to 24°C (68 to 75.2°F), and the relative humidity is approximately 70%. The screening area has diffuse ambient daylight and fluorescent lighting. The screening area is located far enough interior to minimize outside air striking the camera or screening alone that enters the building through the entrance doors.


Temperature Measurement Display with Face and Mask Recognition


Product description

The unit features a 7″ high resolution screen along with an inbuilt accurate infrared temperature sensor. This results in an accurate and rapid measurement of non-contact body temperatures. The inbuilt camera and proprietary software is used for facial recognition regardless of whether the employee is wearing a mask or not. The software can identify personnel by querying individual records. The system can be used as access control to manage the flow of both personnel and the public in hospitals, hotels, office buildings, schools, airports and community service buildings.

Product features

  • non – contact automatic temperature detection
  • temperature measurement range: 30-45℃ with accuracy of ±0.3℃.
  • real-time output of authentication results and voice broadcast
  • automatic identification of personnel not wearing masks with real-time warning
  • Automatic registration and recording of information about recognized person. No manual operation thereby improving efficiency and reducing errors
  • effective face recognition distance of 0,3-1 meter
  • The proprietary face recognition algorithm rapidly and accurately recognizes faces from a database of up to 10,000 faces, in less than 500ms
  • Possible integration with security access control systems or gates
  • Supported languages English, Chinese, Italian, Spanish, Russian, Portuguese, Korean and  Japanese.


  • The temperature measuring equipment should be used at room temperature. Don’t install the temperature measuring equipment under a vent or within 3 meters of heating equipment
  • When people enter the room from a cold outdoor environment, the temperature measurement accuracy will be affected. The forehead temperature test should be conducted with the forehead uncovered and after three minutes of the person’s arrival.
  • The measuring sensor reads the temperature of the forehead area. If there is water, sweat, oil stains or heavy makeup on the forehead, the temperature read will be lower than the actual temperature. Please ensure that there is no hair or a cover on the forehead.


Place of installation

The best allocation place is in the middle or in the front side of the access control machine column. The person should face the screen on the device at a distance of 0.5m and the face image on the screen will be displayed. The exposed forehead should be positioned within the “temperature measuring area”. There is possibility mounting device on the wall. The high 1,5m is recommended.

Non-contact thermometer – K3

Wall mounted non-contact infrared thermometer

glass instaled thermo

The wall-mounted non-contact infrared thermometer measures the temperature from the forehead. It has a fever alarm, allows for an accurate and immediate reading of the measurement result from the LCD screen. It can be used as a self-service test. It will work best in the office, supermarket, or other public areas. Thanks to the contactless operation, it minimizes the possibility of contamination through use.

The K3 non-contact thermometer is also available in the pro version. The measuring time is reduced to 0.1 seconds. The extended version has an upgraded standby time of up to a week, it can also be used outdoor.

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Non-contact thermometer – K3 Pro

Termometr bezdotykowy K3 Pro

  • It is used in public spaces: digital infrared thermometer measures the temperature from the forehead, for use in an office building, super market, canteen, hotel, factory, university, school;
  • Safe: free from contact, can be placed on the wall or a bracket. Convenient to use and non-contact.
  • Accurate and fast: instant reading with LCD possible: the thermometer uses a new chip for faster induction time (500ms), high accuracy, precision tolerance: ± 0.2 (34 ~ 45 ℃);
  • Fever alarm and high-temperature warning;
  • Easy to use: non-contact, it can be glued to the surface or mounted using a rack.


Technical Details:

K3 Pro
  • Measuring: Forehead, Surface (contact-free)
  • Measurement distance: 5-10cm
  • Measurement duration: 0.5s
  • Precission: ±0.2 ˚C
  • Range Body: 34.0~45.0 ˚C
  • Surface: 0~50.0˚C
  • Battery life: 2000+ measurements
  • Fever-alarm: (37.3 ˚C or custom)
  • Dimensions: 170(L) X 115(W) X 140(H) mm
  • Weight 303g (without battery)
  • Input: DC 4.2-5V
  • Charging method: USB charging or battery (18650 Li-ion)
  • Operating Environment Temperature: 10-40 ˚C Humidity: ≤ 85% (non-condensing)
  • Storage Environment Temperature: -20-55 ˚C Humidity: ≤ 93% (non-condensing)

KARO Karlicki Sp. z o.o. company offers its assistance at every stage of the implementation of Thermal Imaging System, starting from the initial analysis of the situation, through the creation of concepts, the design stage, the equipment completion, installation and commissioning, as well as maintenance service. We make cost estimates for the needs of budget calculations.

We invite you to cooperation.