Prevent Probe Polarization: The excitation source is an AC signal, which can effectively prevent probe polarization. Waterproof Probe: 0 to 2.3V analog signal output, compatible with 5V and 3.3V control systems, waterproof probe, can be immersed in water for long term measurement. PCB Material: Hydroelectric conductivity sensor is made of PCB material, high reliability, high stability, Gravity interface. Plug and Play: The water conductivity sensor is easy to connect, plug and play, no soldering required, and simple operation. Scope of Application: Water conductivity sensor is suitable for analog TDS sensor, water conductivity sensor, liquid detection, water quality detection module.