Gravity: Analog TDS Sensor for Arduino | Total Dissolved Solids Meter | Water Quality Sensor Compatible with Arduino

• This is an TDS (Total Dissolved Solids) Meter with gravity interface compatible with Arduino
• Good Compatibility Output: 0~2.3V analog signal output, compatible with 5V or 3.3V controller
• AC Excitation Source: effectively prevent probe from polarization. Probe is waterproof
• Easy to Use: simple connection, plug and play without soldering
• More tutorial (English Version) please search "product guides and documents" on this page to download. If you couldn't find it please contact with DFRobot Customer Service on Amazon.

INTRODUCTION TDS (Total Dissolved Solids) indicates that how many milligrams of soluble solids dissolved in one liter of water. In general, the higher the TDS value, the more soluble solids dissolved in water, and the less clean the water is. Therefore, the TDS value can be used as one of the references for reflecting the cleanliness of water. TDS pen is a widely used equipment to measure TDS value. The price is affordable, and it is easy to use, but it is not able to transmit data to the control system for online monitoring to do some water quality analysis. The professional instrument has high accuracy and can send data to the control system, but the price is expensive for the ordinary people. To this end, we have launched an analog TDS sensor kit which is compatible with Arduino, plug and play, easy to use. Matching with Arduino controller, you can build a TDS detector easily to measure the TDS value of liquid. Attention: 1.The probe can not be used in water above 55 degrees centigrade. 2.The probe can not be left too close to the edge of the container, otherwise it will affect the reading. 3.The head and the cable of the probe are waterproof, but the connector and the signal transmitter board are not waterproof. Please be careful. FEATURES Wide Voltage Input: 3.3~5.5V Good Compatibility Output: 0~2.3V analog signal output, compatible with 5V or 3.3V controller AC Excitation Source: effectively prevent probe from polarization Waterproof Probe SPECIFICATION Signal Transmitter Board Input Voltage: 3.3 ~ 5.5V Output Voltage: 0 ~ 2.3V Working Current: 3 ~ 6mA TDS Measurement Range: 0 ~ 1000ppm TDS Measurement Accuracy: ± 10% F.S. (25 ℃) Module Interface: PH2.0-3P Electrode Interface: XH2.54-2P TDS probe Number of Needle: 2 Total Length: 83cm Connection Interface: XH2.54-2P Other: Waterproof Probe