Most schools, pre-universities and colleges in Malaysia are still using conventional techniques in performing their scientific experiments. A low cost data logger gadget has been developed at Jabatan Fizik, Universiti Pendidikan Sultan Idris for computerized science experiments and demonstration purposes. most sensors produced voltage signals, utilization of data logger is necessary for computer based experiments. This gadget utilizes microcontroller and serial communication to carry out data acquisition task. A computer programming has been developed to record, process, display data and plots on the computer screen.