Hua Rui rent special drip leak metered meter main features: * Display: meter maximum display value: 99999.9 cubic meters. * Non-contact sampling, pulse sampling accurate billing. * Dial scale precision flow metering function. * User card discern features: non-normal account user card is not recognized. * If the power off valve function. * Nominal Diameter (mm) 15 (4 points) / 20 (6 points), can be accessed live section. * Pre-paid functions: the user to purchase water after the first water, chargeback based on real consumption. * Query functions: water meter digital display can show the balance and the situation when the time deductions, for cards inside. * A multi-card feature: You can have multiple cards for credit card chargeback on the same water meter. * Same card can also be on more than one credit card chargeback water meter. * Operating voltage: DC12V, public consumption less than 3W * Card Type: MIFARE 1 RF card intelligent sensors. * Card volume: 500,000 or more. * Minimum billing accuracy 1 liter, the minimum charge amount of 1 cent