Greystone has manufactured HVAC sensors and transmitters for over 30 years for building and energy management systems. Greystone expertise with sensory type devices and custom design engineering capability has complimented many original equipment manufacturers for building automation and direct digital control. Distributors, contractors, and facility engineers have trust in the Greystone brand delivering quality assured and competitive priced product to their commercial and light industrial projects.
Greystone Energy Systems Inc. is internationally recognized as one of the largest ISO registered manufacturers of HVAC sensors and transducers for Building Automation Management Systems. Greystone has conscientiously established a worldwide reputation as an industry leader by maintaining leading-edge design technology, prompt technical support, and a commitment to on-time deliveries.