Check the listing for details. RadonAway 50017 Easy Read Manometer, Blue. Color: Blue, Condition: New. Listed at 12.53 USD. The RadonAway Easy Read U-tube Manometer, installed in nearly a half million homes to date, lets the homeowner know at a glance whether the radon system is operating.* Our u-tube comes packaged as part of a System Monitoring and Homeowner Information packet containing instructions, system and component labels, and a homeowner information brochure that complies with current standards. * This device does NOT measure radon levels. Reads 0-4.5" WC Non-toxic fluid Adjustable zero Molded scale curved to fit system pipe Includes: Easy Read u-tube manometer (with tubing and 2 self-tap screws), Installation instructions, System and component labels, System information brochure, Clear plastic bag with twist tie for hanging information on system