INFO CENTER Special advertiSing Section "EARLY WARNING" Environmental System IR-SNIF-MCD Multiple-Channel Refrigerant Loss Monitors One Monitor For Multiple Refrigerants Designed for industrial comfort air and refrigeration applications with audible, visual and BAS alarm configurations, SenTech's IR-SNIF 1,2,3 (Single Zone) and MCD (Multizone) models are cost-effective, self-contained, active-air-draw sampling systems offering highly reliable infraredbased performance capable of monitoring and responding to 22 refrigerants at concentrations as low as 10 and 1 PPM. Meets ASHRAE 15. ETL Liste d. SenTech Corporation Check our Web site: www.SenTechCorp.com Call or write for additional information. Toll-free 888-248-1988 * Direct 317-596-1988 Fax 317-596-1989 www.info.hotims.com/44638-66 www.info.hotims.com/44638-67 RAWAL DEVICES SEISMIC VIBRATION ISOLATION CURBS Vibro-Curb® combines adjustable spring isolators and a roof curb into a single unit. Rooftop units can be set immediately after curb installation with roofing completed later without disturbing the unit, which eliminates extra crane or helicopter expenses. Flexible 8" counter flashing provides a weather seal and permits easy access to adjust isolators. Can be fabricated to match roof pitch. Airtight plenum available. Vibro-Curb® can ship in one piece or knocked down. Member of VISCMA. Licensed P on staff. .E. Thybar Corporation 913 S. Kay St. Addison, IL 60101 800/666-CURB Fax: 630/543-5309 E-mail: info@thybar.com Website: www.thybar.com www.info.hotims.com/44638-68 www.info.hotims.com/44638-69 n ovem ber 2013 ashrae.org ASHRAE JouRnAl 75