RF card meter pre-paid water meters a multi-card meter

Features: 1, prepaid, first pay after use; 2, the price ladder, a card table; 3, mechanical reading and electronic reading dual display function; 4, unique battery protection; 5, unique properties for wide range; 6, low power consumption, long time. RF card meter main technical parameters: Accuracy class B, using the standard: CJ / T133-2007 IC card cold water table maximum permissible error from minimum flow rate (qmin) to excluding decomposition flow (qt) low area The maximum permissible error of ± 5%. Including the flow from the decomposition (qt) to overload flow rate including (qt) high zone maximum permissible error of ± 2% working pressure is less than 1.0MPa supply voltage 3.6V lithium battery life is not less than 5 years