In industrial measurement, temperature, pressure, flow, and liquid level are the main measurement parameters. In addition to this, interface, humidity, density, mass, pH, conductivity, liquid concentration, gas composition, viscosity, position, displacement, angle, force, number of revolutions, voltage, current, power, power, frequency, time Time, etc.

When the detection part and the transmission part are separate products, they are usually called XX detectors and XX transmitters.

When the detection part or the transmission part is set in the field and output using a unified signal such as 4-20 mA, it is also called a ×× converter. However, since both the converter and the transmitter are designed to transmit measurement signals, there is no clear distinction between the detector, transmitter, and converter in the product name.