Raison TM card water meter introduces advanced microprocessor, take intellectualized design as a method, Realize data collection, Processing, LCD screen display, saving and automatic control of the function. It is small, light, low power ullage, high precision, Anti-jamming, high integration, good reliability, and convenient to Install and operate. It Uses the stainless steel TM card, ibutton card technology to solve the traditional IC card''''s problem for inconvenient to take, Easy to damage, Easy to corrupt, Easy to disturb by electrical magnet.