Skip to main content
Home / Computer Hardware, Monitors & Peripherals / TDS Sensor Module / Analog Signal / Water Quality Detection with Source Code for 51/STM32

Attributes

Brand -
Category Electronic Components / Maker DIY / Computer Hardware, Monitors & Peripherals
Origin -
Input Voltage 3.3V - 5.5V DC
Output Signal Analog Voltage (0-2.3V)
Measurement Range 0 - 1000 ppm
Accuracy +/- 10% (depending on calibration)
Operating Temperature 0°C to 50°C
Interface Type Analog Pin (ADC)
Compatible MCU Arduino, STM32, ESP8266, ESP32
Probe Cable Length Approx. 80 cm
PCB Dimensions 60mm x 20mm x 15mm
Package Includes 1x TDS Module, 1x Probe, 1x Code Link

5 reviews

A

Anonymous

Mar 16, 2026

Rating: 5/5

Great for hobby projects

Works perfectly with my Arduino Uno. The analog output is stable and the provided code helped me get started quickly. Good value for the price.

A

Anonymous

Feb 22, 2026

Rating: 5/5

STM32 compatible

I was worried about compatibility with my STM32 board, but it connected without issues. The voltage levels match well.

A

Anonymous

Feb 17, 2026

Rating: 5/5

Excellent support

Had a question about the library and the support team responded quickly. The module is reliable for monitoring water quality parameters.

A

Anonymous

Feb 16, 2026

Rating: 4/5

Needs calibration

The sensor works well but requires proper calibration with standard solutions to get accurate readings. Once calibrated, it is consistent.

A

Anonymous

Jan 20, 2026

Rating: 3/5

Probe feels fragile

The electronics work fine, but the probe casing feels a bit lightweight. Handle with care during installation in water tanks.

5 FAQ

Q: Is this compatible with Arduino Nano?

A: Yes, this module works with any microcontroller that has an Analog-to-Digital Converter (ADC) pin, including the Arduino Nano.

Q: Where can I download the source code?

A: The link to the GitHub repository containing the source code is included in the package documentation and on the product page.

Q: Can this measure saltwater TDS?

A: This sensor is calibrated for fresh water. Reading saltwater may require specific recalibration and could affect long-term probe accuracy.

Q: What is the maximum depth the probe can be submerged?

A: The probe is designed for submersion up to 1 meter. Please ensure the cable connection point remains dry to prevent corrosion.

Q: Does the package include calibration powder?

A: No, the package includes the sensor module and probe. Calibration solutions need to be purchased separately for accurate ppm readings.

Explore your interests

View More
All Categories
Best Seller (30)
New List (30)
Language of Drums Motion Path Set Drum Creativity Essence Rhythm Drum Kit Teaching Material Jazz Drum

Language of Drums Motion Path Set Drum Creativity Essence Rhythm Drum Kit Teaching Material Jazz Drum

$59.17

1.9m Wide-Format Sublimation Printer for Pillows, Garments, and Fabric Digital Printing

1.9m Wide-Format Sublimation Printer for Pillows, Garments, and Fabric Digital Printing

$600.00

Automatic Retractable Air Hose Reel - Pneumatic Shrinking Hose Drum Combo for Auto Repair (Air, Electric, Water) - National Standard

Automatic Retractable Air Hose Reel - Pneumatic Shrinking Hose Drum Combo for Auto Repair (Air, Electric, Water) - National Standard

$228.00

Marie's Paper Blending Stumps Thickened Xuan Paper Blending Stumps Marie's Student Sketch Set Blending Stumps Rubbing Cotton Painting Special Paper Blending Stumps Smudging Pens Art Supplies Xuan Paper Sketch Fixative

Marie's Paper Blending Stumps Thickened Xuan Paper Blending Stumps Marie's Student Sketch Set Blending Stumps Rubbing Cotton Painting Special Paper Blending Stumps Smudging Pens Art Supplies Xuan Paper Sketch Fixative

$5.09

Inner Mongolia Milk Skin Processing Equipment - Condensed Milk and Butter Production Line, Fully Automatic Cheese Making Machine

Inner Mongolia Milk Skin Processing Equipment - Condensed Milk and Butter Production Line, Fully Automatic Cheese Making Machine

$13,580.00

Yijiayi Plastic Surgery - Hair Follicle Analysis to Assess Growth, Prevent Hair Loss, and Plan Transplants

Yijiayi Plastic Surgery - Hair Follicle Analysis to Assess Growth, Prevent Hair Loss, and Plan Transplants

$10.00

Hell Training Rock Guitar by Shinichi Kobayashi - Electric Guitar Speed Playing Tutorial

Hell Training Rock Guitar by Shinichi Kobayashi - Electric Guitar Speed Playing Tutorial

$106.00

Mai Da Chu Commercial Food Warmer Cabinet, Large-Capacity Constant-Temperature Heating Cart for Banquets, Hotels, and Kitchens

Mai Da Chu Commercial Food Warmer Cabinet, Large-Capacity Constant-Temperature Heating Cart for Banquets, Hotels, and Kitchens

$8,165.00

Children's Activity Appliance Storage Box - Case for Braces, Underbite Correctors, Expanders, and Denture Cleaning

Children's Activity Appliance Storage Box - Case for Braces, Underbite Correctors, Expanders, and Denture Cleaning

$16.80

Stainless Steel Cable Raceway Arc-Shaped Anti-Step Floor Metal Surface Mount Decorative Invisible Wire Channel

Stainless Steel Cable Raceway Arc-Shaped Anti-Step Floor Metal Surface Mount Decorative Invisible Wire Channel

$2.50

Electric Watercolor Spray Pen Children Hand-painted Color Pa

Electric Watercolor Spray Pen Children Hand-painted Color Pa

$46.55

408 Fast-Drying Glue - Strong Low-Whitening Instant Adhesive for Metal and Plastic, Heat Resistant

408 Fast-Drying Glue - Strong Low-Whitening Instant Adhesive for Metal and Plastic, Heat Resistant

$53.12

UE5.1-5.7 Ancient Sci-Fi Gate Model Instrument Consultation

UE5.1-5.7 Ancient Sci-Fi Gate Model Instrument Consultation

$2.00

Biliansheng Hair Transplant - Non-Shave Female Hairline Restoration & Density Enhancement

Biliansheng Hair Transplant - Non-Shave Female Hairline Restoration & Density Enhancement

$19,999.00

Water Brush Pen Set Large Capacity Beginner Gouache Solid Watercolor Paint Brush Tools Line Drawing Art Student

Water Brush Pen Set Large Capacity Beginner Gouache Solid Watercolor Paint Brush Tools Line Drawing Art Student

$32.00

Beginner Watercolor Painting Line Art Coloring Book, Hua Meng Lv Ren by Stan, Fine Texture, 2-Pack Free Shipping

Beginner Watercolor Painting Line Art Coloring Book, Hua Meng Lv Ren by Stan, Fine Texture, 2-Pack Free Shipping

$10.60

New Wanli Tire 265/45R21 SU306+ - Compatible with AITO M7, BYD Tang, Range Rover, Li Auto, and NIO

New Wanli Tire 265/45R21 SU306+ - Compatible with AITO M7, BYD Tang, Range Rover, Li Auto, and NIO

$528.00

Suzhou Factory Wholesale Chain Store Logo - RGB Illuminated Letters, Acrylic Neon Signs for Window and Counter Display

Suzhou Factory Wholesale Chain Store Logo - RGB Illuminated Letters, Acrylic Neon Signs for Window and Counter Display

$1,911.00

RoHS 1.0 Environmental Tester for Alloy Analysis and Heavy Metal Detection in Plastic Toys

RoHS 1.0 Environmental Tester for Alloy Analysis and Heavy Metal Detection in Plastic Toys

$15.30

Mont Marte Long-Handle Bristle Brush – Professional Art Brush for Acrylics, Oil Painting, and Flat Wash Techniques

Mont Marte Long-Handle Bristle Brush – Professional Art Brush for Acrylics, Oil Painting, and Flat Wash Techniques

$37,500.00

Portable Plastic Backpack Fertilizer Bucket for Manual Fruit Picking, Seed Feeding, and PPC Fertilization

Portable Plastic Backpack Fertilizer Bucket for Manual Fruit Picking, Seed Feeding, and PPC Fertilization

$9.50

Chinese-Style Hand-Drawn Plant Line Art Coloring Book on 100% Cotton Watercolor Paper

Chinese-Style Hand-Drawn Plant Line Art Coloring Book on 100% Cotton Watercolor Paper

$15.80

Eagle Brand 99021 Industrial Scouring Pads, Cleaning Cloths, and Polishing Pads Supply

Eagle Brand 99021 Industrial Scouring Pads, Cleaning Cloths, and Polishing Pads Supply

$666.00

Pad Printing Machine Parts - Zhongke 4-Inch Blade Clamp, Blade Holder, and Doctor Blade Frame (In Stock)

Pad Printing Machine Parts - Zhongke 4-Inch Blade Clamp, Blade Holder, and Doctor Blade Frame (In Stock)

$4.50

Pneumatic Throttle Valve Quick Connect Fitting SL4-01/4-02/4-03 Air Pressure Regulator Flow Control Valve

Pneumatic Throttle Valve Quick Connect Fitting SL4-01/4-02/4-03 Air Pressure Regulator Flow Control Valve

$8.60

Pad Printing Silicone Rubber Heads Electric Long Round Square Durable Customizable 30-Year Established Store

Pad Printing Silicone Rubber Heads Electric Long Round Square Durable Customizable 30-Year Established Store

$3.00

Specialized Vegetable Growing Box - Foam Balcony Planter, Rectangular Plastic Pot for Home Gardening

Specialized Vegetable Growing Box - Foam Balcony Planter, Rectangular Plastic Pot for Home Gardening

$41.70

Candy Naoko Gujima Mr. Saxophone City Pop Sheet Music with Accompaniment Demo

Candy Naoko Gujima Mr. Saxophone City Pop Sheet Music with Accompaniment Demo

$37.00

Multi-Color Detachable Water Bucket Stand - Office Purified Water Dispenser Holder (Inverted)

Multi-Color Detachable Water Bucket Stand - Office Purified Water Dispenser Holder (Inverted)

$60.95

Oil-Based Original Strong Fast-Drying Adhesive for Metal, Plastic, Rubber, Ceramics, and Wood, Multi-Purpose Transparent Glue (Not 502)

Oil-Based Original Strong Fast-Drying Adhesive for Metal, Plastic, Rubber, Ceramics, and Wood, Multi-Purpose Transparent Glue (Not 502)

$21.60