Infant warmer was the main appartus used after the birth in the infant care unit. It consist of a heating element and controlled based on the skin temperature reading to maintain a steady temperature around 37-37.5℃. The purpose of this study is to use the noncontact temperature sensors reading that using thermopile principle and report its performance. The system consist of 600W ceramic heating element that controlled using BT136 Triacs. ESP32 microcontroller was the chosen controller that was also monitoring the bed area with AMG8833 thermopile sensor. The control scheme was a proportional-integral-derivative (PID) method with base frequency of 10 Hz. The reading was displayed on the graphical OLED display that shows the current state of the bed temperature. As the calibration method, a Fluke NICU calibrator was used to test the system performance. This system will be the performance evaluation of the use of ceramic heater combined with thermopile sensor using the above control criteria. The infant warmer could warmed the bed area to reach the setting point after 13 minutes at the air conditioned room of 25 ℃ and after that could maintain at no more than 1% error over any time periods.