Sterilization data history is needed to maintain and examine an autoclave performance to minimize the risk of sterilization failure. This study aimed to develop a sterilization data recording system for an autoclave with external data storage using an SD card. The TFT LCD is used as the user interface to make it easier for users to monitor temperature and pressure during the sterilization process. The MAX 31865 temperature sensor and the MPX 5700 AP pressure sensor are used to monitor the temperature and pressure in real-time during the sterilization process. The entire sterilization process of the developed system is controlled using The ATMega 2560 microcontroller. Three testings have been carried out to determine the designed temperature, and the pressure data recording system has been a success, Temperature data recording, Pressure data recording, and Process data recording. Based on the conducting test results, the designed recording system gives an excellent performance to record the temperature, pressure level, and data sterilization process with a success rate of 100%.

The autoclave is one of the tools used for the sterilization process. If it is used as medical equipment in a hospital, according to the laws and regulations, it must have a certificate of proper use. Currently, autoclave calibration is carried out analogously by testing bacterial growth on spore strip paper. This research is part of the autoclave innovation and aims to create a process design for recording history data on the sterilization process. Data recording uses the data logger method recorded onto the SD Card memory media to record parameter values every second. Program commands are written in C language and run on the Arduino Mega 2560 microprocessor module. The autoclave temperature was detected by the RTD PT100 sensor, and the pressure inside the autoclave was detected using the MPX5700AP sensor. The recording was done in real-time using the DS3231 Real Time Clock (RTC) timer. The research results are to analyze the autoclave condition in more detail in order to obtain the eligibility status and facilitate the calibration process.