How can you confirm the wetted materials of a corrosion-resistant pressure transmitter? This article reviews key selection factors, including the medium's concentration, temperature, pressure, and cleaning conditions, starting with wetted parts such as the diaphragm, process connections, seals, and welds. It explains the suitability limits of 316L stainless steel, corrosion-resistant alloys, and non-metallic materials, and provides purchasing checks and verification points to help reduce the risk of corrosion-related failure and clarify quotation and acceptance requirements.