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)
Sink Drain Rack Corner Hanging Basket - Kitchen Sponge and Cloth Organizer, Multi-Function Home Storage Solution

Sink Drain Rack Corner Hanging Basket - Kitchen Sponge and Cloth Organizer, Multi-Function Home Storage Solution

$13.73

Magnetic Refrigerator Side Storage Rack - No-Drill Wall Organizer for Spices and Utensils

Magnetic Refrigerator Side Storage Rack - No-Drill Wall Organizer for Spices and Utensils

$9.10

Multi-Function Car Tire Stone Removal Hook Tool for Picking and Digging Out Debris

Multi-Function Car Tire Stone Removal Hook Tool for Picking and Digging Out Debris

$7.35

Suction Cup Sink Strainer - Disposable Kitchen Drain Filter for Food Scraps and Waste

Suction Cup Sink Strainer - Disposable Kitchen Drain Filter for Food Scraps and Waste

$14.30

Kimberly-Clark Wiper Paper, Industrial Cleaning Wipes for Oil and Grease, Factory & Laboratory Use

Kimberly-Clark Wiper Paper, Industrial Cleaning Wipes for Oil and Grease, Factory & Laboratory Use

$963.52

Loose Gold Rutilated Quartz Beads, Donghai Agate, Chalcedony, Jade, Cat's Eye, Titanium Crystal, Aquamarine, White and Yellow Crystal Single Beads for Bracelets

Loose Gold Rutilated Quartz Beads, Donghai Agate, Chalcedony, Jade, Cat's Eye, Titanium Crystal, Aquamarine, White and Yellow Crystal Single Beads for Bracelets

$8.42

Faucet Drain Mat, Non-Slip Countertop Pad for Kitchen and Bathroom, Splash-Proof Sink Organizer, Thickened Mold-Resistant Silicone Mat

Faucet Drain Mat, Non-Slip Countertop Pad for Kitchen and Bathroom, Splash-Proof Sink Organizer, Thickened Mold-Resistant Silicone Mat

$3.78

New Pirelli Tire 255/40R20 101W AO PZERO PZ4 with Silent Cotton Original Fit for Audi A6L

New Pirelli Tire 255/40R20 101W AO PZERO PZ4 with Silent Cotton Original Fit for Audi A6L

$1,358.00

Oriental Pearl Dual Porcelain Jar Gift Set: Green Tea, Black Tea, Jin Jun Mei, Pu'erh Loose Leaf Tea in Porcelain Jars

Oriental Pearl Dual Porcelain Jar Gift Set: Green Tea, Black Tea, Jin Jun Mei, Pu'erh Loose Leaf Tea in Porcelain Jars

$149.00

Purified Water Bucket Stand Inverted Water Dispenser Pump Simple Mineral Water Drinking Machine Press Pump

Purified Water Bucket Stand Inverted Water Dispenser Pump Simple Mineral Water Drinking Machine Press Pump

$10.80

New Children's Gouache Paint Brushes DIY Hand-Painted Graffiti Art Class Watercolor Acrylic Paint Brushes Bristle Round Tip Brush

New Children's Gouache Paint Brushes DIY Hand-Painted Graffiti Art Class Watercolor Acrylic Paint Brushes Bristle Round Tip Brush

$6.41

Natural Clear Quartz Fully Clean Untreated Faceted Round Rice Beads - For Women's Bracelets, Spacer Beads, and DIY Crafts

Natural Clear Quartz Fully Clean Untreated Faceted Round Rice Beads - For Women's Bracelets, Spacer Beads, and DIY Crafts

$6.63

Sponge Brushes for Kids' Crafts and Creative Painting - Student Art Stamping Tools, DIY Sponge Paintbrushes

Sponge Brushes for Kids' Crafts and Creative Painting - Student Art Stamping Tools, DIY Sponge Paintbrushes

$13.86

Jiuchenggong Liquan Ming Tang Dynasty Ouyang Xun Yao Mengqi Copybook, Regular Script Brush Calligraphy Workbook, 3 Volumes, 188 Pages

Jiuchenggong Liquan Ming Tang Dynasty Ouyang Xun Yao Mengqi Copybook, Regular Script Brush Calligraphy Workbook, 3 Volumes, 188 Pages

$17.90

Shaped Watercolor Paper Ticket Stubs - Blank Postage Stamp Bookmarks with Serrated Edges, Thickened 300g Premium Cotton Pulp, Fine Texture for Art Hand Painting, Easy Blending, High Absorbency, Wrinkle-Resistant - Perfect for Postcards and Creative Cards

Shaped Watercolor Paper Ticket Stubs - Blank Postage Stamp Bookmarks with Serrated Edges, Thickened 300g Premium Cotton Pulp, Fine Texture for Art Hand Painting, Easy Blending, High Absorbency, Wrinkle-Resistant - Perfect for Postcards and Creative Cards

$9.85

Naitong Automatic Retractable Air Hose Reel with PU Braided Hose for Pneumatic Tools and Car Detailing

Naitong Automatic Retractable Air Hose Reel with PU Braided Hose for Pneumatic Tools and Car Detailing

$119.00

Premium Wall-Mounted Aromatherapy Empty Bottle – 100ML Plastic Square Diffuser Bottle with Wall-Mount Adhesive Sticker

Premium Wall-Mounted Aromatherapy Empty Bottle – 100ML Plastic Square Diffuser Bottle with Wall-Mount Adhesive Sticker

$2.98

Leyingfang Floating Pen for Kids' Water Drawing, Colorful Water-Soluble Suspended Markers, Erasable Watercolor Pens

Leyingfang Floating Pen for Kids' Water Drawing, Colorful Water-Soluble Suspended Markers, Erasable Watercolor Pens

$13.80

Loose Rose Quartz Beads, Donghai Agate, Chalcedony, Jadeite, and Madagascar Pink Crystal for DIY Jewelry Making

Loose Rose Quartz Beads, Donghai Agate, Chalcedony, Jadeite, and Madagascar Pink Crystal for DIY Jewelry Making

$6.72

Expandable Stainless Steel Sink Rack, Multi-Function Kitchen Drain Board for Fruits, Vegetables, and Utensils

Expandable Stainless Steel Sink Rack, Multi-Function Kitchen Drain Board for Fruits, Vegetables, and Utensils

$14.90

Transparent Retainer Case Aligner Storage Box Portable Carry-On Squeeze Bag Orthodontic Appliance Rubber Band Cleaning Box

Transparent Retainer Case Aligner Storage Box Portable Carry-On Squeeze Bag Orthodontic Appliance Rubber Band Cleaning Box

$18.50

Transparent Data Cable Organizer Bag for Travel - Portable Multi-Use Visible Storage for Digital Chargers and Cable Management

Transparent Data Cable Organizer Bag for Travel - Portable Multi-Use Visible Storage for Digital Chargers and Cable Management

$7.36

Finished Seal Calligraphy Finished Stone Stamp Sellos Chines

Finished Seal Calligraphy Finished Stone Stamp Sellos Chines

$108.58

Chunfei Grocery Store Commuter Hard Fork Low-Beam Mountain Bike for Urban Roads, Suburbs, School, and Outings

Chunfei Grocery Store Commuter Hard Fork Low-Beam Mountain Bike for Urban Roads, Suburbs, School, and Outings

$2,247.00

6-Cavity Large Square French Flower DIY Soap Silicone Mold for Essential Oil and Milk Soap

6-Cavity Large Square French Flower DIY Soap Silicone Mold for Essential Oil and Milk Soap

$4.93

Home Balcony Vegetable Planter - Self-Watering Plastic Pot for Strawberries and Succulents

Home Balcony Vegetable Planter - Self-Watering Plastic Pot for Strawberries and Succulents

$28.00

Pressure Swing Adsorption Nitrogen Generator - High-Purity Nitrogen Device for Heat Treatment

Pressure Swing Adsorption Nitrogen Generator - High-Purity Nitrogen Device for Heat Treatment

$36,456.00

6-Cavity 3D Rose Silicone Mold for DIY Soap Making Heat-Resistant Non-Stick Large Size for Milk Soap and Essential Oil Soap

6-Cavity 3D Rose Silicone Mold for DIY Soap Making Heat-Resistant Non-Stick Large Size for Milk Soap and Essential Oil Soap

$5.80

Traditional Handmade Baby Teething Rattle Sheepskin Wooden Clapper Newborn Toy Intangible Cultural Heritage

Traditional Handmade Baby Teething Rattle Sheepskin Wooden Clapper Newborn Toy Intangible Cultural Heritage

$29.85

Manufacturer Supply ZSJC02 Film Splicing Table, Alignment Table, Film Inspection Table

Manufacturer Supply ZSJC02 Film Splicing Table, Alignment Table, Film Inspection Table

$4,484.00