---
product_id: 246188282
title: "CQRobot TDS Water Quality Monitoring Sensor for Arduino & Raspberry Pi"
brand: "cqrobot"
price: "R560"
currency: ZAR
in_stock: true
category: "Cq Robot"
url: https://www.desertcart.co.za/products/246188282-cqrobot-tds-water-quality-monitoring-sensor-for-arduino-and-raspberry
store_origin: ZA
region: South Africa
---

# Wide 3.3-5.5V input Waterproof probe, 54cm cable 0-2.3V analog output CQRobot TDS Water Quality Monitoring Sensor for Arduino & Raspberry Pi

**Brand:** cqrobot
**Price:** R560
**Availability:** ✅ In Stock

## Summary

> 💧 Decode your water’s story with precision and ease!

## Quick Answers

- **What is this?** CQRobot TDS Water Quality Monitoring Sensor for Arduino & Raspberry Pi by cqrobot
- **How much does it cost?** R560 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.za](https://www.desertcart.co.za/products/246188282-cqrobot-tds-water-quality-monitoring-sensor-for-arduino-and-raspberry)

## Best For

- cqrobot enthusiasts

## Why This Product

- Trusted cqrobot brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Robust & Reliable:** Waterproof probe with AC excitation prevents polarization for consistent readings
- • **Precision Measurement:** 16-bit ADC ready for accurate dissolved solids detection
- • **Plug & Play Simplicity:** Arduino & Raspberry Pi compatible for instant liquid quality insights
- • **Versatile Voltage Range:** Operates smoothly from 3.3V to 5.5V, fitting diverse controller boards
- • **Educational & Research-Grade:** Ideal for labs, classrooms, and DIY projects to decode water purity

## Overview

The CQRobot TDS Meter Sensor is a waterproof, plug-and-play sensor designed for measuring total dissolved solids in liquids. Compatible with Arduino and Raspberry Pi (via ADS1115 ADC module), it operates on a wide voltage range (3.3V-5.5V) and outputs a 0-2.3V analog signal. Perfect for scientific research, education, and online liquid quality analysis, it delivers reliable conductivity-based TDS readings with ±10% accuracy.

## Description

Buy CQRobot TDS Water Quality Monitoring Sensor for Arduino & Raspberry Pi | TDS (Total Dissolved Solids) Detector, Ideal for Aquarium, Hydroponics, Household & Daily Drinking Water Testing at desertcart UK. Free delivery on eligible orders.

## Features

- Wide Voltage Input: 3.3V to 5.5V. Good Compatibility Output: 0 to 2.3V analog signal output, compatible with 5V or 3.3V controller.
- AC Excitation Source: effectively prevent probe from polarization, Waterproof Probe.
- Easy to Use: Arduino compatible, simple connection, plug and play without soldering.
- Used with ADS1115 16-Bit ADC Module (ASIN: B08KFZ3PVT, Model: CQRADS1115), Compatible with Raspberry Pi Motherboard.
- Note: When using the TDS instrument sensor, the sensor probe is immersed in liquid, and the purchaser needs to Separate the sensor Probe Protective Cover to avoid incorrect data reading and malfunction.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B08KXRHK7H |
| Best Sellers Rank | 111,982 in Business, Industry & Science ( See Top 100 in Business, Industry & Science ) 55 in Electrodes |
| Brand | CQRobot |
| Country Of Origin | China |
| Current Rating | 3 Milliamps |
| Customer Reviews | 4.4 4.4 out of 5 stars (236) |
| Item Highlight | TDS (Total Dissolved Solids) Detector, Ideal for Aquarium, Hydroponics, Household & Daily Drinking Water Testing |
| Item Weight | 0.05 Kilograms |
| Manufacturer | CQRobot |
| Manufacturer Part Number | CQRSENTDS01 |
| Material | PLA_(Polylactic_Acid), PE_(Polyethylene) |
| Maximum Supply Voltage | 5.5 Volts |
| Measurement Accuracy | [+/- 10% F.S.] |
| Model Number | CQRSENTDS01 |
| Number of Items | 1 |
| Output Type | analog |
| Sensing Distance | 83 Centimetres |
| Style Name | TDS Meter Sensor |

## Product Details

- **Brand:** CQRobot
- **Current rating:** 3 Milliamps
- **Item weight:** 0.05 Kilograms
- **Material:** PLA_(Polylactic_Acid), PE_(Polyethylene)
- **Style:** TDS Meter Sensor

## Images

![CQRobot TDS Water Quality Monitoring Sensor for Arduino & Raspberry Pi - Image 1](https://m.media-amazon.com/images/I/41OIOjsfkbL.jpg)
![CQRobot TDS Water Quality Monitoring Sensor for Arduino & Raspberry Pi - Image 2](https://m.media-amazon.com/images/I/51weaTN0dZL.jpg)
![CQRobot TDS Water Quality Monitoring Sensor for Arduino & Raspberry Pi - Image 3](https://m.media-amazon.com/images/I/51zmhbEURfL.jpg)
![CQRobot TDS Water Quality Monitoring Sensor for Arduino & Raspberry Pi - Image 4](https://m.media-amazon.com/images/I/51wb2UFwiNL.jpg)
![CQRobot TDS Water Quality Monitoring Sensor for Arduino & Raspberry Pi - Image 5](https://m.media-amazon.com/images/I/417-65GPkHL.jpg)

## Questions & Answers

**Q: Can this sensor work with an ESP32 and esphome?**
A: Hello! It can be used with ESP32 and esphome, it's just that we don't have example test code at the moment. Buyers need to have a certain ESP32 application coding foundation, test and write code by themselves.

**Q: Can the probe be fully submersed? And if so, for how long? Indefinitely?**
A: Hi! The TDS probe and lead are made of waterproof material and can be immersed in water, but the cable interface and signal transfer board are not waterproof, please use it with caution. Please refer to the "Connections and Examples" section in the Wiki of this product below:
http://www.cqrobot.wiki/index.php/TDS_(Total_Dissolved_Solids)_Meter_Sensor_SKU:_CQRSENTDS01

**Q: Is the sensor able to be plumbed into water line? a number of tds sensors will directly fit in a 1/4" push connect fitting.**
A: Hi! The probe and lead of the TDS sensor are made of waterproof material, which can be inserted into the water pipe and installed in the 1/4" push connection fitting, but make sure that the water temperature in the water pipe does not exceed 55 degrees Celsius, because the probe cannot be used in water above 55 degrees Celsius. Please. Refer to the "Connections and Examples" section in the following Wiki of this product:
http://www.cqrobot.wiki/index.php/TDS_(Total_Dissolved_Solids)_Meter_Sensor_SKU:_CQRSENTDS01

## Frequently Bought Together

- CQRobot TDS (Total Dissolved Solids) Meter Sensor Compatible with Raspberry Pi/Arduino Board. for Liquid Quality Analysis Teaching, Scientific Research, Laboratory, Online Analysis, etc.
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**Shop now:** [https://www.desertcart.co.za/products/246188282-cqrobot-tds-water-quality-monitoring-sensor-for-arduino-and-raspberry](https://www.desertcart.co.za/products/246188282-cqrobot-tds-water-quality-monitoring-sensor-for-arduino-and-raspberry)

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*Product available on Desertcart South Africa*
*Store origin: ZA*
*Last updated: 2026-10-19*