The offered USB Based Standalone Data Logger System is used to log different type of sensors input. It can be applied to small remote I/O system. With its user-friendly interface, users can quickly and easily build any control application without any programming skills. This data logger has 8 analog inputs, which can be used to sense temperature/humidity analog values. Each sensor has its own corresponding relay. These relays will get ON/OFF depending upon the lower limit and higher limit of each sensor set by user.