15mm-20mm IC Card Prepaid Water Meter

IC card prepaid water meterIC card prepaid water meter is the new measuring instrument employing the microprocessor to realize water collection,processing ,display ,and reserving.It is the best choice for realizing intelligent control by most of tap water administrative bureaus,ideal for enhancing public awareness of saving water. This meter has many patents.Compared with traditional way ,it can control user`s overspend by prepaying for an IC card.Features:1.IC card water meter use pre-paid way to achieve the new management mode of "purchase first ,then use"2.Double reading display: mechanical and electronic reading3.The unique battery protection4.Stable performance ,wide application5.Low power consumption ,long life timeMAXIMUM PERMISSIBLE ERROR:a) In the lower zone , Q1≤Q≤Q2 is ±5%b) In the upper zone ,when temperature≦30℃,Q2 ≤Q≤Q4 is ±2%;when temperature >30℃,Q2 ≤Q≤Q4 is ±3%