A digital biotelemetry system has been designed and built which provides conventional asynchronous data communication at 9600 baud. Various sample rates are possible for the analog input voltage channels, including one channel at 460 Hz, four channels at 160 Hz, and two channels at 10 Hz. The data are acquired, stored and displayed using a personal computer. The transmitter is controlled with a MC68HC11 CMOS sigle-chip microprocessor, allowing low-power operation.