TDS Sensor Module – Water Conductivity Meter for Arduino 3.3–5.5V
TDS Sensor Module – Water Conductivity Meter for Arduino 3.3–5.5V
TDS Sensor Module – Analog Water Conductivity & Quality Monitoring Meter
Take precise control of your water quality testing projects with this TDS (Total Dissolved Solids) Sensor Module. Designed for seamless integration with Arduino and other microcontroller platforms, this analog sensor delivers reliable, real-time conductivity readings across a wide operating voltage range of 3.3V to 5.5V. Whether you're building a DIY water quality monitor, a hydroponics system, an aquarium controller, or an IoT smart home device, this module gives you the accuracy and flexibility you need.
Key Features
- Wide Voltage Compatibility: Operates at 3.3V–5.5V, making it compatible with Arduino Uno, Mega, Nano, ESP8266, ESP32, Raspberry Pi, and more.
- Analog Output: Smooth, stable analog signal output for easy integration into your microcontroller ADC pin.
- Water Conductivity Detection: Accurately measures the concentration of dissolved solids in liquid solutions — ideal for tap water, RO water, hydroponic nutrient solutions, and aquarium water.
- Compact SMD Package: Space-saving surface-mount design fits neatly into any project enclosure or breadboard setup.
- Easy Wiring: Simple 3-pin connection (VCC, GND, Signal) for quick and hassle-free setup.
- DIY & Maker Friendly: Perfect for hobbyists, engineers, students, and professionals building water monitoring or automation projects.
Technical Specifications
- Module Type: TDS Sensor Module
- Supply Voltage: 3.3V – 5.5V DC
- Output Type: Analog
- Package Type: SMD
- Quantity: 1 Module
- Condition: Brand New
- Compatible Platforms: Arduino, ESP8266, ESP32, Raspberry Pi, and most 3.3V/5V microcontrollers
- Country of Origin: Made in China
What Can You Build With It?
This TDS sensor module is a versatile component for a wide variety of projects, including:
- Home water quality monitoring systems
- Hydroponic and aquaponic nutrient solution monitors
- Aquarium and fish tank water quality controllers
- Smart irrigation and agricultural water testing
- IoT-connected water quality dashboards
- Educational electronics and science projects
Package Contents
- 1 × TDS Sensor Module
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Frequently Asked Questions
Q: What is a TDS Sensor Module and what does it measure?
A: A TDS (Total Dissolved Solids) Sensor Module measures the electrical conductivity of a liquid to estimate the concentration of dissolved substances such as minerals, salts, and other compounds in the water. It outputs an analog voltage signal that your microcontroller (like Arduino) can read and convert into a TDS value in parts per million (ppm).
Q: Is this TDS Sensor Module compatible with Arduino?
A: Yes! This module is fully compatible with Arduino boards (Uno, Mega, Nano, etc.) as well as other 3.3V–5.5V microcontrollers including ESP8266, ESP32, and Raspberry Pi. Simply connect VCC, GND, and the analog signal pin to your board's ADC input to get started.
Q: What kinds of liquids can I test with this sensor module?
A: This TDS sensor module is suitable for testing a wide range of liquids including tap water, filtered or reverse osmosis (RO) water, hydroponic nutrient solutions, aquarium water, and other non-corrosive aqueous solutions. It is not intended for use with highly corrosive or flammable liquids.
Q: Do I need any special libraries or code to use this with Arduino?
A: The module outputs a standard analog voltage, so you can read it using Arduino's analogRead() function. Many open-source TDS libraries and sample sketches are available in the Arduino community to help you convert the raw analog value into a meaningful TDS reading in ppm, making setup quick and straightforward.
Production & Packaging Notice
To maintain high stock availability and fast shipping times, our items are sourced from multiple verified manufacturing facilities. While the core quality, materials, and product specifications remain identical, you may notice slight variations in the packaging design, manufacturing origin, or the wording of the printed instructions.