EchoTherm dry baths include the SC20XT, a simple digital unit, and the fully programmable SC25XT, which has a five-program memory. Both units offer a temperature range from 㪬 C to 100 C, and incorporate a variable speed orbital shaker for mixing and controlling the temperature of samples simultaneously. Both units have a 30-day count down timer with alarm and auto-off, data logger, and RS232 I/O port for data logging or controlling the units from a computer.