About this item
The DFRobot Gravity: Analog TDS Sensor/Meter is a practical and reliable tool designed for measuring Total Dissolved Solids (TDS) in water, making it ideal for water quality testing in applications like aquaponics, hydroponics, environmental monitoring, and water filtration systems. TDS represents the concentration of dissolved substances in a liquid—such as salts, minerals, and organic compounds—and is a key indicator of water purity. This sensor outputs an analog voltage signal that varies with the TDS level, and it’s easily compatible with Arduino and other 5V/3.3V microcontroller platforms. It comes with a waterproof TDS probe, making it suitable for long-term immersion in water. The sensor's Gravity interface simplifies connection, allowing for plug-and-play prototyping. With a measurement range of 0–1000 ppm (mg/L), the sensor is calibrated for use in drinking water and low-concentration solutions. The module includes onboard signal conditioning and temperature compensation to improve measurement accuracy in real-world environments. Compact, easy to integrate, and reliable, the DFRobot Analog TDS Sensor is a powerful solution for developers and engineers building water monitoring systems or smart agriculture applications that require real-time tracking of water quality.
Specifications
| Measurement Range | 0 – 1000 ppm (mg/L) |
|---|---|
| Output Signal | Analog voltage |
| Operating Voltage | 3.3V – 5.5V |
| Signal Interface | Gravity 3-pin (VCC, GND, AOUT) |
| Probe Type | Waterproof and replaceable TDS probe |
| Accuracy | ±10% Full Scale |
| Response Time | <500 ms |
| Operating Temperature | 5°C to 55°C |
Ratings & Reviews
Similar Products
SparkFun BOB-08891 Gas Sensor Breakout
0.0 out of 5 stars
0 global ratings- 5 stars 0%
- 4 stars 0%
- 3 stars 0%
- 2 stars 0%
- 1 stars 0%
₹175
₹266
34% Off
Add
to Cart
SparkFun KIT-17071 Artemis Development Kit with Camera
0.0 out of 5 stars
0 global ratings- 5 stars 0%
- 4 stars 0%
- 3 stars 0%
- 2 stars 0%
- 1 stars 0%
₹3,989
₹5,999
34% Off
Add
to Cart
SparkFun DEV-16402 MicroMod Teensy Processor
0.0 out of 5 stars
0 global ratings- 5 stars 0%
- 4 stars 0%
- 3 stars 0%
- 2 stars 0%
- 1 stars 0%
₹2,795
₹4,982
44% Off
Add
to Cart
SparkFun GPS-15136 GPS-RTK2 Board – ZED-F9P (Qwiic)
0.0 out of 5 stars
0 global ratings- 5 stars 0%
- 4 stars 0%
- 3 stars 0%
- 2 stars 0%
- 1 stars 0%
₹30,400
₹59,999
49% Off
Add
to Cart
SparkFun DEV-15423 Qwiic Micro – SAMD21 Development Board
0.0 out of 5 stars
0 global ratings- 5 stars 0%
- 4 stars 0%
- 3 stars 0%
- 2 stars 0%
- 1 stars 0%
₹1,975
₹2,999
34% Off
Add
to Cart
SparkFun DEV-19426 Spark-Fun Open-Log Artemis (without IMU)
0.0 out of 5 stars
0 global ratings- 5 stars 0%
- 4 stars 0%
- 3 stars 0%
- 2 stars 0%
- 1 stars 0%
₹3,219
₹6,577
51% Off
Add
to Cart
SparkFun COM-16917 Qwiic Alphanumeric Display – Blue
0.0 out of 5 stars
0 global ratings- 5 stars 0%
- 4 stars 0%
- 3 stars 0%
- 2 stars 0%
- 1 stars 0%
₹1,164
₹1,999
42% Off
Add
to Cart
SparkFun DEV-18158 RedBoard Plus
0.0 out of 5 stars
0 global ratings- 5 stars 0%
- 4 stars 0%
- 3 stars 0%
- 2 stars 0%
- 1 stars 0%