The CO-2065 and CO-2060 additionally the CO-2060 can be performed easily not only for cooling. Units can be used for optical isomer separation columns, additionally for increases and decreases in the temperature by the use of a time program. The CO-2060/2065 ovens are designed with temperature controls accuracy. ±0.1ºC and has superior reproducibility. Device comes with a preheating coil, a manual indicator, reaction coil plus additional devices can bed added to both. CO-2060 unit is suitable for both heating and cooling, the CO-2065 is for heating only. Both units are capable of detecting abnormal temperatures and leaks in solvents they also have safeguard mechanisms which shut off the heat.