1、No magnet flow sensor; 2、The core of the flow meter adopts hard alloy bearing, which is abrasion resistant; 3、The header of the calculator can be rotated 350 degrees for convenient reading; 4、The impulse,M-bus and RS485 interface can realize remote communication and centralized control; 5、With automatic error diagnosis function to ensure the meter working with safety and accuracy; 6、Not easy to be blocked, can be used in the low-quality water environment; 7、Battery life more than 6 years; 8、Available for cold water and hot water(measure both heat and cold water value); 9、Best water inflow and outflow pipeline options for easy fixing;