CQRobot TDS Meter Sensor for Raspberry Pi/Arduino – Input, Waterproof

Description

Product Overview

The CQRobot TDS Meter Sensor is engineered to deliver precise total dissolved solids (TDS) measurements across a wide range of liquid environments. Designed for seamless integration with both Raspberry Pi and Arduino platforms, the sensor accepts a flexible voltage range of 3.3 V to 5.5 V, making it adaptable to diverse power supplies and project requirements. Its waterproof probe, built with corrosion‑resistant materials, can be fully immersed in water, saline solutions, or chemical mixtures without compromising accuracy or durability. The sensor outputs an analog voltage signal ranging from 0 to 2.3 V, which can be directly read by an ADC module such as the ADS1115 16‑bit converter, enabling high‑resolution data capture for scientific research, classroom labs, and real‑time online monitoring. Compact dimensions (4.13 × 2.83 × 0.67 in) and a lightweight design (1.76 oz) ensure easy mounting on prototype boards, test rigs, or portable measurement kits. The device’s robust construction, combined with its plug‑and‑play wiring, eliminates the need for soldering, allowing users to focus on data analysis rather than hardware assembly.

Usage

In educational settings, the CQRobot TDS Meter Sensor serves as an ideal hands‑on learning tool for chemistry, environmental science, and engineering courses. Students can connect the sensor to a Raspberry Pi or Arduino, write simple scripts to log TDS values, and visualize trends in real time, fostering a deeper understanding of water quality parameters and sensor technology. In professional laboratories, the sensor supports routine analysis of drinking water, wastewater, and industrial process streams, providing rapid feedback for quality control and compliance testing. Its waterproof probe enables continuous immersion testing, while the wide voltage input accommodates battery‑powered field deployments for environmental monitoring projects. Hobbyists and makers can incorporate the sensor into smart home systems, automated hydroponic setups, or IoT devices, leveraging the analog output to trigger alerts when TDS levels exceed predefined thresholds. The sensor’s compatibility with the ADS1115 ADC module further expands its utility, allowing high‑precision measurements that can be transmitted over Wi‑Fi or Bluetooth networks for remote data logging and cloud‑based analytics.

Why Choose Us

Choosing the CQRobot TDS Meter Sensor means selecting a product backed by rigorous quality assurance and a commitment to customer success. Each unit undergoes comprehensive functional testing to verify voltage tolerance, probe integrity, and signal accuracy before shipment, ensuring that users receive a reliable component ready for immediate deployment. CQRobot’s reputation for delivering durable, high‑performance sensors is reflected in a 4.2‑star rating from over two hundred verified customers, who praise the sensor’s ease of integration and consistent data output. The sensor’s design incorporates an AC excitation source that minimizes probe polarization, a common source of measurement drift in traditional conductivity meters, thereby extending probe lifespan and reducing maintenance costs. Additionally, CQRobot provides detailed documentation, example code libraries for both Raspberry Pi and Arduino, and responsive technical support to assist users at every stage of their project, from initial setup to advanced data analysis. By offering a cost‑effective solution without sacrificing accuracy, the CQRobot TDS Meter Sensor empowers educators, researchers, and innovators to achieve reliable liquid quality assessments while staying within budget constraints.

Key Features

• Wide voltage input (3.3‑5.5 V) ensures compatibility with most microcontroller power supplies.
• Waterproof probe allows direct immersion in liquids for continuous, accurate TDS monitoring.
• Analog output (0‑2.3 V) pairs easily with ADS1115 16‑bit ADC for high‑resolution data capture.
• Plug‑and‑play wiring eliminates soldering, speeding up prototyping and educational deployments.
• Comprehensive technical support and detailed documentation provide confidence throughout the project lifecycle.

FAQ

What voltage range does the sensor accept?

The sensor operates safely within a 3.3 V to 5.5 V input range, making it suitable for both 3.3 V and 5 V microcontroller boards.

Can the probe be used in corrosive solutions?

Yes, the probe is constructed from corrosion‑resistant materials and is fully waterproof, allowing immersion in a variety of chemical solutions without degradation.

How do I connect the sensor to an ADS1115 ADC module?

Simply connect the sensor’s analog output to the ADS1115’s input channel, power the ADC with the same voltage as the sensor, and use the provided I²C library to read high‑resolution voltage values.

Is soldering required for installation?

No. The sensor features a plug‑and‑play connector that can be attached directly to the Raspberry Pi or Arduino header pins, enabling quick setup without solder.

What support is available if I encounter issues?

CQRobot offers responsive email and forum support, along with extensive documentation, example code, and troubleshooting guides to help resolve any integration challenges.