... or dithering defense two pulse counter are used in meter system. The reading dates are debugged ahead in wireless transfer ... stability;♦ Build-in antenna;♦ Very easy operation.QUALIFICATION nominal flow rate: 1.6m3/h, 2.5m3/h, 4 m3 ... measured by the meter. Wireless meter system is made of basic meter, meter reading, wireless communication module, handy-meter and meter main station system. wireless gas ...