Item Type: Analog TDS Sensor Module_x000D_Material: Plastic_x000D_Purpose: Liquid detection_x000D_Input Voltage: 3.3~5.5V_x000D_Output Signal: 0~2.3V_x000D_Working Current: 3~6mA_x000D_TDS Measurement Range: 0~1000ppm_x000D_TDS Measurement Accuracy: 10% F.S. (25)_x000D_Module Interface: XH2.54-3P_x000D_Electrode Interface: XH2.54-2P_x000D_Number Of Probes: 2_x000D_Total Length: Approx. 83cm / 32.7in_x000D_Connection Interface: XH2.54-2P 10~2.3V analog signal output, compatible with 5V and 3.3V control systems. 2The water conductivity sensor is easy to connect, plug and play, no welding is required. 3Waterproof probe can be immersed in water for a long time. Wide voltage operation: 3.3~5.5V. 4The excitation source is an AC signal, which effectively prevents probe polarization. 5The measurement range of analog TDS sensor is 0~1000ppm, which is convenient and practical. 1 x Sensor Board 1 x Probe 1 x Sensor Line