Features 【LONG-TERM USE】: Waterproof probe can be immersed in water for extended periods, with high-quality construction and durable performance. 【SIMPLE OPERATION】: Easy to connect—plug-and-play design, no soldering required. 【WIDE APPLICATIONS】: Suitable for water quality monitoring in applications such as domestic water and hydroponics. 【POLARIZATION PREVENTION】: Uses an AC excitation signal to minimize electrode polarization. 【COMPATIBLE CONTROL SYSTEM】: Provides 0–2.3V analog output, compatible with both 5V and 3.3V control systems. Specifications Item Type: Water Conductivity Sensor Material: PCB Operating Voltage: 3.3–5.5V Output Signal: 0–2.3V Operating Current: 3–6mA TDS Measurement Range: 0–1000 ppm TDS Measurement Accuracy: ±10% F.S. (at 25°C) Module Interface: XH2.54-3P Electrode Interface: XH2.54-2P TDS Probe Number of Probes: 2 Overall Length: Approx. 60 cm (23.62 in) Connection Interface: XH2.54-2P Color: White Package Includes 1 x Water Conductivity Sensor Notes 1. Do not use the probe in water above 55°C. 2. Avoid placing the probe too close to the container edge to ensure accurate readings. 3. The probe head and wires are waterproof and may be submerged; however, the connection interface and signal board are not waterproof.