... 0-100Pa to 42MPa 3.Interchangeable parts, easy to maintain HT1151GP-------------pressure transmittercodeMeasurement range3-7.5KPa-----0-----7.5KPa4-40KPa-----0 ... upper partD2Side exhaust/discharge valves in the lower partDaFlameproofFaIntrinsic safety HT1151GP pressure transmitter