CENTRON C2SO’s piston-type measuring element achieves ±1.5% accuracy from low-flow detection of 0.03 gallons per minute to peak residential demand, ensuring accurate billing across the full consumption range. Integrated leak indicator flags continuous low-flow events consistent with running toilets or underground pipe leaks, alerting utilities and customers to waste before bills spike. Wi-SUN mesh endpoint transmits hourly reads and alarm conditions back to the CENTRON head-end without driving by with a handheld meter reader. Backward compatible with Itron fixed-network collectors and ERTs, protecting existing AMR infrastructure investments while enabling incremental AMI upgrades. Lead-free brass housing meets NSF/ANSI 372 drinking water safety standards.