The Umeter Clamp 1" Copper is a patented clamp-on ultrasonic water meter that eliminates the need for tools or plumbing expertise. The meter clamps directly onto existing 1" Copper Type L or Type M pipe in seconds with a leak-free guarantee. Uses ultrasonic technology with no moving parts for consistent water flow data over its entire operational lifespan - ideal for both new installations and retrofitting existing setups. Certified for Plenum (air-handling) spaces per UL listings. Cold water only (34F-90F). Outputs include pulse, Sensus-encoded protocol, and smart/proprietary protocol. NTEP certified for legal-for-trade billing.