Contactless Infrared Temperature Sensor

Accurate temperature measurements over a distance from 25-70cm

The CIR-100 contactless infrared temperature sensor is a truly unique temperature sensing solution that combines fast and accurate temperature measurements comparable to oral body temperature with the freedom to measure this over a distance ranging from 25-70cm.

Fully unobtrusive

This large distance range allows for contactless temperature measurements  completely unobtrusively for the user as no infrared temperature sensor is pushed in the users face and with a wide tolerance on how the user is positioned in front of the CIR100. This enables new autonomous temperature sensing possibilities without involvement of additional personnel.


Intended use

CIR-100 is a Contactless Infrared Temperature Sensor which measures the temperature of a person at a distance of 25 – 70 cm, without coming in contact with them. It measures the temperature of the forehead and provides the forehead temperature and the translated oral temperature in the range of 34°C – 43°C (93.2°F – 109.4°F).

The device should be used to measure only one subject’s temperature at a time.

The device is intended to identify persons suspected of having a fever to prevent them from entering a specific location.

CIR-100 provides a temperature measurement of a person. Public health officials, through their experience with the device in the particular environment of use, should determine the significance of any fever or elevated temperature based on the measurement.

When the device indicates an elevated body temperature, a secondary screening with a clinical thermometer should be performed.

The measurement should not be solely or primarily relied upon to diagnose or exclude a diagnosis of COVID-19, or any other disease.

This intended use is subject to the FDA enforcement policy for telethermographic systems during the Coronavirus Disease (COVID-19) public health emergency.  This device is not FDA cleared or approved.



Oral body temperature

The CIR-100 measures the temperature of the forehead and provides the forehead temperature and the translated oral temperature in the range of 34°C – 43°C (93.2°F – 109.4°F).


The CIR-100 laboratory accuracy is ±0.5˚C over the full measurement range from 25-70 cm when used indoors.

Fast measurement

Temperature measurements are completed within 5 seconds. The CIR-100 is calibrated by the manufacturer and does not need recalibration over its lifetime.

Smart algorithms

The camera uses smart algorithms to deliver an accurate temperature reading under specified use conditions. All processing is done within in the CIR-100.


The CIR-100 can be integrated into larger systems. Customizations and extra features are possible on request.


The CIR-100 is powered via the USB interface on the back of the unit. This USB interface is also used for serial communication with the device. Extensive API documentation is available to make integration easy.

Technical Specifications

  • CIR temperature output: degrees Celsius (˚C)
  • Oral temperature range: 34˚C – 43˚C (93.2°F – 109.4°F)
  • Measurement duration: 5 seconds
  • Laboratory accuracy:
    • ±0.5˚C over the full measurement range from 25-70cm
      Oral temperature validation pending
  • Dimensions [L x H x D]: 111 x 60 x 54mm
  • Weight: 350gr
  • Power: 5Vdc, < 90mA (USB power)
  • Connectivity: USB 2.0 Virtual COM Port, 115200 baud, 8 bit, 1 stop, no parity, RTS/CTS flow control
  • Environment temperature : 15 – 31.5˚C
  • Storage temperature 0°C to 45°C
  • Relative Humidity 80% RH, non condensing


  • CIR-100 Temperature Sensor
  • USB 2.0 cable mini USB to USB type A, 0.3 m length
  • Product Manual

Taking a measurement

The user stands in front of the CIR-100 at a distance of 25-70cm. If the user is not standing within range the device indicates the user how to correct its position. Within seconds after the measurement has been started it communicates the measured temperature values over the USB interface to a connected device where it is displayed. This can be a computer, Android device (integration with other operating systems on request) or remote display (not included). 

How the CIR-100 works

The CIR-100 contactless infrared temperature sensor scans the face and uses smart algorithms to compute the oral body temperature. The accuracy is achieved by combining infrared sensing techniques with laser based photonics and 2M’s smart algorithms. 


The Infrared Temperature Sensor is connected via a USB interface to a computer, which powers the device and handles the communication with the device. Measurements can be started from the computer after which the temperature sensor send back the temperature value according to the defined API.

Extensive API documentation and sample code is available for easy integration.

Possible applications of the medical infrared temperature sensor

Health kiosks

Fever screening at airports, hospitals, (public) buildings, companies, cafes, schools, hotels

Health screening points

CE Marking & FCC

  • CE marking. The CIR-100 complies with EMC directive: EN IEC 61326-1:2013. 

  • FCC marking. The CIR-100 complies with the limits for a Class B digital device, pursuant to part 15 of the FCC Rules.

  • The laser is Class 1 laser device compliant with IEC 60852-1:2014..


1 year

CIR-100 Android demo interface
CIR-100 Android demo interface
CIR-100 Windows demo interface
CIR-100 Windows demo interface