Hudson Technologies Inc., Pearl River, N.Y., has purchased the proprietary Efftrack chiller efficiency software, customer list and related assets from Efficiency Technologies Inc., Tulsa, Okla. The acquisition supports Hudson’s chiller management and efficiency optimization product and service offering.

EffTrack is a web-based chiller management program that provides continual engineering analysis and immediate recommendations for correcting inefficiencies in chiller systems. The software is currently in use throughout the United States, Australia and the Pacific Rim.