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Detailed Description:

Monitor and assess water quality with precision using our TDS Sensor Module for Arduino – Total Dissolved Solids (ppm) Water Quality Sensor. This essential component allows you to accurately measure the concentration of total dissolved solids (TDS) in a liquid, providing a critical indicator of its purity and overall quality. Ideal for a wide range of applications, from home automation to environmental monitoring, this sensor empowers you to make informed decisions about your water.

Total Dissolved Solids (TDS) refers to the combined total of organic and inorganic substances, such as salts, minerals, and metals, that are dissolved in water. The higher the TDS value, measured in parts per million (ppm), the greater the concentration of these dissolved substances, generally indicating less pure water.

The TDS Sensor Module works by measuring the electrical conductivity of the water. As the amount of dissolved solids increases, the water's conductivity also increases. The module typically uses an AC excitation signal to prevent the sensor probe from polarization, which prolongs the probe's life and enhances the stability of the output signal. The waterproof TDS probe can be safely immersed in water for continuous measurement.

Key features and applications of this water quality sensor include:

• Analog Output: The module provides an analog voltage output (typically 0~2.3V for a 0~1000ppm range), which is directly proportional to the TDS level. This analog signal can be easily read by the Analog-to-Digital Converter (ADC) pins of any microcontroller, including Arduino, ESP32, ESP8266, and Raspberry Pi.

• Wide Compatibility: Designed with a broad input voltage range (often 3.3V to 5.5V), making it compatible with both 3.3V and 5V control systems.

• Easy Integration: Simple connection via 3 pins (VCC, GND, and Signal), making it plug-and-play with Arduino and similar development boards.

• Temperature Compensation: For higher accuracy, some modules support or recommend integrating a temperature sensor to compensate for temperature's influence on conductivity readings.

• Versatile Applications:

  • Drinking Water Quality: Assess the purity of tap water, filtered water, or bottled water.

  • Aquariums & Hydroponics: Monitor water conditions crucial for aquatic life or plant growth.

  • Water Treatment Systems: Evaluate the effectiveness of purifiers and filters.

  • Environmental Monitoring: Track changes in natural water bodies.

  • DIY Smart Water Systems: Create automated irrigation systems or smart water dispensers.

The TDS Meter Sensor Module measures the concentration of total dissolved solids (minerals, salts, and organic matter) in water and outputs a voltage that corresponds to ppm (parts per million) values.

It’s commonly used in environmental monitoring, RO water purifiers, smart agriculture, aquariums, and aquaponics systems. This module uses a waterproof TDS probe and interfaces easily with Arduino using its analog output. Ideal for IoT and real-time water analysis.

Key Features:

• Measures water TDS (0–1000 ppm range)

• Outputs analog voltage proportional to TDS level

• Comes with waterproof probe and signal adapter board

• Simple 3-pin interface (VCC, GND, AOUT)

• High compatibility with Arduino, ESP8266, ESP32, STM32

• Suitable for DIY, lab, agricultural and industrial use

• Helps detect RO water filter effectiveness, water pollution

• Low power consumption and durable build

Technical Specifications:

How to Use:

1. Connect sensor to VCC (5V), GND, and A0 (analog input) of Arduino

2. Insert TDS probe into clean water sample

3. Read analog values via code and convert using calibration formula

4. Use calibration reference to display ppm (TDS) on LCD/Serial Monitor

Applications:

• Water quality monitoring systems

• Hydroponics & aquaponics farms

• IoT-based RO water filter monitoring

• Environmental and lab testing

• Agricultural irrigation systems

• Smart water dispensers and purifiers

Package Includes:

• 1 x TDS Signal Converter Module

• 1 x Waterproof TDS Sensor Probe

• 3 x Connecting Wires