



Seeed Studio Grove TDS Sensor/Meter For Water Quality
- Arduino-compatible sensor for accurate measurement of Total Dissolved Solids (TDS) in water.
- Wide compatibility with 3.3V and 5V input voltage and a simple Analog Signal output.
- Features a robust and durable Waterproof TDS Probe with a 60cm cable.
- Effective TDS measurement range of 0 to 1000 ppm (parts per million).
- Quick and easy integration thanks to the standard Grove 4-Pin Interface (Plug-and-Play).
- Low operational current draw (3-6 mA) and an onboard power indication LED.
Product Details
Grove - TDS Sensor/Meter For Water Quality (Total Dissolved Solids)
The Grove - TDS Sensor/Meter is an essential tool for monitoring water quality in various applications, from simple hobby projects to critical environmental systems. This easy-to-use sensor is designed to measure the concentration of Total Dissolved Solids (TDS), which is the amount of all inorganic and organic substances dissolved in water. The resulting TDS value directly indicates the purity and quality of the water being tested.
Featuring a dedicated signal conditioning board and a durable, waterproof probe, this module provides an analog voltage output that is directly proportional to the TDS level. Its wide voltage support (3.3V/5V) and simple Grove interface ensure seamless compatibility with popular microcontrollers like Arduino, Raspberry Pi (with an ADC), and Seeeduino, making it the perfect foundation for building your own water quality monitoring station for home, hydroponics, or aquarium use.
🔧 Key Features
- Function: Measures Total Dissolved Solids (TDS) to assess water quality.
- Output Type: Analog Voltage (0 ~ 2.3V) for simple reading by a microcontroller ADC.
- TDS Range: High-accuracy measurement up to 1000 ppm.
- Probe: Includes a dedicated, long-lasting Waterproof TDS Probe.
- Interface: Standard Grove System interface for quick, non-solder connection.
- Compatibility: Fully supports both 3.3V and 5V operating systems (e.g., Arduino, Raspberry Pi, ESP32).
💡 Applications
- DIY Water Quality Testers and portable TDS meters.
- Monitoring water in Hydroponics and aeroponics systems.
- Continuous monitoring of Aquarium and fish tank water purity.
- Implementation in automated Water Filter Systems and quality control.
Why Choose the Grove TDS Sensor?
The Grove ecosystem simplifies development by offering reliable, pre-wired, and standardized modules. Choosing the Grove TDS Sensor means getting a high-quality, stable, and ready-to-use solution that significantly reduces prototyping time, letting you focus on data interpretation and application development rather than complex wiring.
⚙️ Technical Specifications
| Measurement Parameter | Total Dissolved Solids (TDS) |
| TDS Range | 0 ~ 1000 ppm (parts per million) |
| Input Voltage (VCC) | 3.3V / 5V DC |
| Output Voltage Range | 0 ~ 2.3V DC (Analog) |
| Working Current | 3 ~ 6 mA |
| Connection Interface | Grove 4-Pin / XHB 2.54mm 2P |
| Probe Type | Waterproof (Cannot exceed 70 ∘ C) |
| Probe Cable Length | 60 cm |
📦 Package Includes
- 1 × Grove - TDS Sensor Board
- 1 × Waterproof TDS Probe with Cable
- 1 × 20cm Grove Cable
Specifications
- TypeTDS SENSOR
- Operating Voltage3.3V – 5V
- Temperature Range0°C – 50°C
- Output TypeAnalog voltage
- Sampling RateAdjustable(50Hz - 1000Hz)
- InterfaceAO








