waste water flow meter,water level meter anti-impurity,anti-sticky, ... part,1.0% 6~4000mm,4~20mA easy instal&control waste water flow meter,water level meter,water metermain technical indicesMeasured ... .06%companyParameter OutputformExplosion-proof signProtection classaccuracyConnection formBody materail WELKIN-WFV(United States) 4~20mAHART-protocolI class B,C,DEExdIICIP66IP683Acertification±0.5%FS ...