TDS Meter Sensor Module for Arduino – Total Dissolved Solids (ppm) Water Quality Tester
The TDS (Total Dissolved Solids) Meter Module is an electronic sensor designed to measure the amount of dissolved solids in water, which indicates water quality. It provides an analog or digital output compatible with Arduino and other microcontrollers, allowing real-time monitoring of water purity. This TDS Meter Sensor Module allows you to measure the Total Dissolved Solids (TDS) in water, giving a quick estimate of water purity. Compatible with Arduino, ESP32, and Raspberry Pi, it's ideal for IoT water quality monitoring, hydroponics, and aquaponics systems. This module typically uses a TDS sensor probe immersed in water and an onboard circuit that converts the probe’s conductivity into a measurable voltage signal, which corresponds to TDS in parts per million (ppm).
₹ 899 ₹1,199
1,199
| Made In : | India |
Detailed Description:
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:
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Measures water TDS (0–1000 ppm range)
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Outputs analog voltage proportional to TDS level
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Comes with waterproof probe and signal adapter board
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Simple 3-pin interface (VCC, GND, AOUT)
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High compatibility with Arduino, ESP8266, ESP32, STM32
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Suitable for DIY, lab, agricultural and industrial use
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Helps detect RO water filter effectiveness, water pollution
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Low power consumption and durable build
Technical Specifications:
| Parameter | Specification |
|---|---|
| Operating Voltage | 3.3V – 5V DC |
| Output Signal | Analog voltage |
| TDS Measurement Range | 0 – 1000 ppm |
| Output Voltage Range | 0.0 – 2.3V (analog) |
| Probe Type | Waterproof (2-pin TDS probe) |
| Temperature Range | 0–40°C |
| Accuracy | ±10% of reading |
| Module Size | ~42mm x 32mm |
| Compatible With | Arduino, ESP32, ESP8266, STM32, etc. |
How to Use:
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Connect sensor to VCC (5V), GND, and A0 (analog input) of Arduino
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Insert TDS probe into clean water sample
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Read analog values via code and convert using calibration formula
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Use calibration reference to display ppm (TDS) on LCD/Serial Monitor
Applications:
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Water quality monitoring systems
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Hydroponics & aquaponics farms
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IoT-based RO water filter monitoring
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Environmental and lab testing
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Agricultural irrigation systems
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Smart water dispensers and purifiers
Package Includes:
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1 x TDS Signal Converter Module
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1 x Waterproof TDS Sensor Probe
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3 x Connecting Wires
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