Specification: Item Type: Water Conductivity Sensor Material: PCB Wide Voltage Operation: 3.3~5.5V Input Voltage: 3.3~5.5V Output Signal: 0~2.3V Working Current: 3~6mA TDS Measurement Range: 0~1000ppm TDS Measurement Accuracy: ± 10% F.S. (25 C) Module Interface: XH2.54-3P Electrode Interface: XH2.54-2P TDS Probe: Number of Probes: 2 Overall Length: Approx. 83cm / 32.68in Connection Interface: XH2.54-2P Colour: White Package List: 1 x Water Conductivity Sensor Note: 1. Probes cannot be used in water above 55°C. 2. The position of the probe should not be too close to the edge of the container, otherwise will affect the indication. 3. The head and wires of the probe are waterproof and can be immersed in water, but the connection interface and signal transmission board are not waterproof.