




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
Package Contents
- 1x Grove - TDS Sensor
- 1x 20cm Grove Cable
- 1x Waterproof TDS Probe
Original: $13.70
-65%$13.70
$4.79Product Information
Product Information
Shipping & Returns
Shipping & Returns
Description
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
Package Contents
- 1x Grove - TDS Sensor
- 1x 20cm Grove Cable
- 1x Waterproof TDS Probe





















