This paper presents the development of low cost physiotherapy monitor system. Generally, muscle will generate a signal while it is activated. For ease of study, the system will be design based on one selected muscle. The design of the low cost monitoring system has two channel input and a small size base platform. Simple EMG signal is output from the low cost platform and sent into computer. The signal is acquired from surface electromyography electrode (SEMG) attach on the muscle and is sent into computer as the output from the develop platform. Small and low cost monitoring system will enhance the mobility and it's affordable by user.