ESC Spectrum is passionate about helping industrial plants comply with clean air regulations by providing Continuous Emissions Monitoring System (CEMS) solutions. We are a turnkey provider with over 50 years of experience in air emissions compliance. Our Data Acquisition Systems are market leaders and serve over 3,100 sources. We build high-quality shelters and conduct testing, repair, maintenance, and more. We back our products with in-house, 24/7/365 expert customer support.