... 2.no removable part,0.2% 3.4~20mA,0~10V,RS485,HART,remote control 4.No.of employees ... proof signProtection classaccuracyConnection formBody materailWELKIN-WFV(United States)4~20mAHART-protocolI class B,C,DEExdIICIP66IP683Acertification±0.5 ... 75mmclamp:12~150mminsert:150~1500mm303/304ss316ssRixin-SBL(China)4~20mApules1-10VRS485/232HART-protocolsec.instrumentExiallCT4ExiallBT4IP65IP67IP68Gas:±1.5%FSliquid ...