A line of low temperature coolers that provide cooling of liquids to temperatures as low as -100°C is available from PolyScience. Available in both immersion probe and flow through styles, these compact systems are ideal for cooling exothermic reactions, freeze point determinations, freeze drying, impact testing, lyophilization, and vapor and solvent trapping. PolyScience Immersion Probe Style Coolers reduce the expense of using dry ice or liquid nitrogen and are capable of reaching temperatures as low as -100°C. A flexible hose allows convenient placement of the cooling probe. Seven different models as well as a variety of probe types are available. Capable of reaching temperatures as low as -25°C, PolyScience Flow-Through Style Coolers are ideal for extending the temperature range of non-refrigerated circulators to below ambient as well as boosting the cooling capacity of refrigerated circulators. These coolers also offer an extremely economic alternative to tap water cooling of heated circulating baths when rapid cool-downs or operation at or near ambient is needed.

PolyScience, 800-229-7569, www.polyscience.com