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One monitor for multiple refrigerants! SenTech's IR-SNIF 1,2,3 (single zone) and IR-SNIF MCD (multi-zone) models are cost-effective, self-contained active air-draw sampling systems offering highly reliable infrared based performance capable of monitoring and responding to 22 refrigerants at concentrations as low as 10 and 1 ppm. Meets ASHRAE 15.
SenTech Corp.
888-248-1988
www.sentechcorp.com
This overview of the benefits of zoning includes tips for selling to consumers and businesses. Tom Jackson discusses options for new construction and retrofit, as well as some ways a residential contractor can get into the light commercial business with zoning products. Speaker: Tom Jackson, CEO, Jackson Systems
With access to over one million professionals and more than 60 industry-specific publications, 
