The Seeed Grove – TDS Sensor measures dissolved solids in water and works with any Arduino, offering 3.3/5V support and a waterproof probe — ideal for water filters, hydroponics and aquarium monitoring. The Seeed Grove – TDS Sensor is an Arduino-compatible module for measuring Total Dissolved Solids (TDS) in water, providing a simple way to assess water quality. It’s suitable for home water filters, hydroponics, aquariums and other water-testing projects. The sensor measures dissolved solids to give an indication of overall water quality and can be used in applications such as TDS meters, well-water testing, hydroponic nutrient monitoring and aquarium maintenance. It supports 3.3V and 5V input, with a 0–2.3V output, ensuring compatibility with all Arduino boards. A waterproof probe is included, making sampling and testing easy and reliable. With the SenseCAP S2110 Sensor Builder and S2100 data logger, you can easily turn the Grove into a LoRaWAN® sensor. Seeed not only helps you with prototyping, but also offers you the possibility to expand your project with the SenseCAP series of robust industrial sensors. Features * Analogue signal, high accuracy measuring: The TDS measurement range is 0-1000ppm. * Waterproof TDS probe: Use a waterproof TDS probe not easier corroded by water * Good compatibility: Where 0 ~ 2.3V output voltage can be easily implemented in 3.3/5V control system * Grove unified socket: The product ensures "Plug and Play" and could be versatile for various applications of Grove Specifications Input Voltage 3.3/5V Output Voltage 0 ~ 2.3V Working Current 3 ~ 6mA TDS Measurement Range 0 ~ 1000ppm Power indication LED Connection Interface Grove 4-Pin / XHB 2.54mm 2P Waterproof Probe Cable Length 60cm Waterproof Probe Connection Interface XHB 2.54mm 2P Dimensions 20 x 40 cm Supplier Code 101020753 Hardware Overview Resources * Learn - Grove TDS Sensor Package Contents * 1x Grove - TDS Sensor * 1x 20cm Grove Cable * 1x Waterproof TDS Probe https://elecena.pl/product/29567105/grove-tds-sensor-meter-for-water-quality 2025-12-05 https://elecena.pl/product/29567105/grove-tds-sensor-meter-for-water-quality 2026-04-08