One of the important physiological parameters is body temperature, and the increased level is an early indicator of infection. Therefore, it is necessary to develop temperature detection in animals using contactless methods and with precise results. This study aimed to compare 3 types of IR sensors for the body temperature check without contact in animals. The three sensors are the Thermo gun sensor type, MLX90614, and AMG8833. The MLX90614 and AMG8833 are used by ensuring a connection with the Arduino Uno microcontroller. The script and libraries used were followed the standard code provided by Arduino. Furthermore, the data from the 3 sensors were compared with the FLIR C2 professional thermal camera and the contact temperature measurement was carried out with a thermometer. The results of measurements using 3 types of sensors showed that the thermo gun sensor was not suitable for non-contact temperature check in animals since it cannot be calibrated. The MLX906144 and AMG8833 sensors can be used as non-contact thermometers in animals by optimizing and modifying the script code or adding circuit components. To obtain the temperature measurement optimization formula, it should be repeated with a larger number of trials, while paying attention to the factor of ambient change.