The 1151/3351DP differential pressure transmitter is used to measure the liquid level, density, and pressure of liquids, gases, or vapors, and then convert them into 4-20mA DC signal output. The intelligent type can communicate with the Hart manual operator to set, monitor, or form an on-site monitoring system with the upper computer. The 1151/3351DP on-site adjustable intelligent differential pressure transmitter is a new product developed by our company according to on-site requirements. It can be separated from the manual operator and can be used to achieve on-site zero adjustment, configuration, and other operations through button pressing.