1、Using high quality piezoelectric ceramic transducer, ensure the high accuracy and stability; 2、The header of the calculator can be rotated 90 degrees for convenient reading; 3、The impulse,M-bus and RS485 interface can realize remote communication and centralized control; 4、With automatic error diagnosis function to ensure the meter working with safety and accuracy; 5、Not easy to be blocked, can be used in the low-quality water environment; 6、Battery life more than 6 years； 7、Available for cold water and hot water(measure both heat and cold water value)； 8、Best water inflow and outflow pipeline options for easy fixing；