Analog TDS Sensor Module with Waterproof Probe (3.3V-5.5V Total Dissolved Solids Sensor)

The Analog TDS Sensor Module is designed to measure the Total Dissolved Solids (TDS) level in water, providing an analog voltage output proportional to the concentration of dissolved ions. It features a waterproof probe suitable for continuous immersion and uses an AC excitation signal to prevent probe polarization, ensuring improved measurement stability and extended probe life. The module operates from a wide supply voltage range of 3.3V to 5.5V, making it compatible with Arduino, ESP32, STM32, Raspberry Pi (with ADC), and other microcontroller platforms.

This sensor is ideal for water quality monitoring, hydroponics, aquariums, water purification systems, environmental monitoring, and IoT-based water management applications.

Key Features -

• Measures Total Dissolved Solids (TDS) in water

• Wide operating voltage from 3.3V to 5.5V DC

• Analog voltage output for easy microcontroller interfacing

• Waterproof probe for long-term water immersion

• AC excitation technology prevents probe polarization

• Compatible with 3.3V and 5V microcontroller systems

• Stable and reliable measurement performance

• Compact signal conditioning module

• Easy integration with Arduino, ESP32, STM32, and Raspberry Pi

• Suitable for continuous water quality monitoring

Specifications -

• Product type - Analog TDS Sensor Module

• Measurement type - Total Dissolved Solids (TDS)

• Operating voltage - 3.3V to 5.5V DC

• Output type - Analog Voltage

• Output voltage range - 0V to 2.3V

• Logic compatibility - 3.3V and 5V Systems

• Excitation method - AC Signal Excitation

• Probe type - Waterproof Conductivity Probe

• Probe feature - Suitable for Long-Term Water Immersion

• Package / Mounting type - PCB Module with External Probe

Applications -

• Water quality monitoring

• Drinking water testing

• Hydroponic nutrient monitoring

• Aquarium water management

• Water purification systems

• Environmental monitoring

• Agricultural irrigation systems

• IoT water quality projects

• Laboratory water testing

• Educational electronics projects