Heat meter ,energy meter,calorie meter,single jet nonmagnetic heat meter,Detachable heat meter,mechanical heat meter,water meter Features:1) YG series heat meters ... the adjustment period5.Smart multi-flow design, capable of recording flow rate and volume6.Advanced nonmagnetic sensing ... High precision design, meeting Class 2 metering requirements of EN1434 and CJ128 standards8.A lithium battery with ...