MULTICAL® 21 flowIQ® 2101 / ..02 / ..03 Water Meter
Flume 2 Smart Home Water Monitor & Water Leak Detector: Detect Water Leaks Before They Cause Damage. Monitor Your Water Use to Reduce Waste & Save Money. Installs in Minutes, No Plumbing Required - Amazon.com
Kamstrup Flow IQ 3101 Encoded Output Ultrasonic Water Meter 2" x 17", 160 GPM | eBay
DAE MJ-100 1″ NSF61 Lead Free Potable Water Meter, Pulse Output + Couplings, Gallons – DAE Controls
flowIQ® 2102 - WaterMark certified water meter – SBS Digital