PolyScience is offering a compact refrigerated chiller for use with CO2, YAG, argon-ion, Nd:glass and diode lasers. The model 612 controls temperatures from —10 to 40 °C with ±0.2 °C stability. Features include a set-it-and-forget-it analog temperature control, a self-priming pump and a high-efficiency heat exchanger. It requires <1.5 sq ft of bench or floor space, weighs <60 lb, has a 390-W cooling capacity and produces a stable coolant flow. A number of options, including rack-mounting, are available.