The EchoTherm high-performance liquid chromatography (HPLC) column heater model CO20 from Torrey Pines Scientific Inc, Carlsbad, Calif, has a temperature range from room temperature to 90.0°C, readable and settable in increments of 0.1°C. The unit features proportional-integral-derivative (PID) temperature control software that regulates temperatures to ±0.1°C. Moreover, a stable temperature indicator lamp on the front panel alerts users when the target temperature is stable to within ±0.2ºC. Using mounting clips provided with space for guard columns and fittings, the heater holds columns up to 30 cm long by 14 inches. Users can remove mounting clips to accommodate larger diameter columns. The unit is designed with simple controls, a digital display of target and actual chamber temperatures, an injection counter, 30-day timer with alarm, and user-settable auto-off. Available with an accessory stand, the heater operates from 12 V DC and comes with a benchtop universal power supply, three-wire AC line cord for the country of use, and counter cable. It also comes with a 12-month warranty and instruction manual. For more information, visit Torrey Pines Scientific.