Grove - TDS Sensor/Meter for Water Quality

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