Model 9842 from Thermatron Engineering Inc. is equipped with a liquid-to-air heat exchanger with stainless steel tubes. Other features include a magnetic-drive stainless steel gear pump with multivoltage monitor; 0.8-liter reservoir; inline deionization cartridge and particle filter; liquid flow and temperature switches; liquid level sensor; and fan. All internal surfaces that contact coolant are compatible with deionized water. Cooling performance is 20 W of dissipation for every 1°C of initial temperature differential between the ambient air and water entering the heat exchanger.
January/February 2001, RS# 211