--- product_id: 744235660 title: "KEYESTUDIO Water Quality TDS Meter Fully Melted Solids Sensor Module for Arduino Arduino Arduino Arduino Arduino Electronic Crafts" brand: "keyestudio" price: "€ 19.10" currency: EUR in_stock: true category: "Keyestudio" url: https://www.desertcart.be/products/744235660-keyestudio-water-quality-tds-meter-fully-melted-solids-sensor-module store_origin: BE region: Belgium --- # KEYESTUDIO Water Quality TDS Meter Fully Melted Solids Sensor Module for Arduino Arduino Arduino Arduino Arduino Electronic Crafts **Brand:** keyestudio **Price:** € 19.10 **Availability:** ✅ In Stock ## Quick Answers - **What is this?** KEYESTUDIO Water Quality TDS Meter Fully Melted Solids Sensor Module for Arduino Arduino Arduino Arduino Arduino Electronic Crafts by keyestudio - **How much does it cost?** € 19.10 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.be](https://www.desertcart.be/products/744235660-keyestudio-water-quality-tds-meter-fully-melted-solids-sensor-module) ## Best For - keyestudio enthusiasts ## Why This Product - Trusted keyestudio brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Description TDS Meter: Input Voltage: DC 3.3-5.5V Output Voltage: 0 - 2.3 V Working Current: 3-6mA TDS measurement range: 0 - 1,000 ppm TDS measurement accuracy: ±10% F.S. (77°F (25°C)). Module interface: XH2.54-3P Electrode Interface: XH2.54-2P TDS Probe: Number of needles: 2 Total length: 32.7 inches (8Connection interface: XH2.54-2P Color: White Other: Waterproof probe ## Features - KEYESTUDIO TDS sensor is compatible with Arduino MCU and its unique design is easy to use - You can use this sensor to measure the TDS value of your water, i.e. total amounts of various solids in the water - The higher TDS value, the more impurities in the water. Impurities usually refer to the concentration of Ca2+, MG2+, Na+, K+ and other ions in water, and cannot directly indicate water quality. Therefore, too high TDS (600+) indicates poor water quality, but lower TDS the better the water quality - The sensor has four 3.2mm fixed holes for easy mounting to other equipment - TDS sensor provides sample code for Arduino testing. More information about KEYESTUDIO KS0429 can be found on Google ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B08DGLY3J2 | | Amazon Bestseller | #57,407 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #48 in Lab Moisture Balances | | Are Batteries Included | No | | Brand | KEYESTUDIO | | Customer Reviews | 4.3 4.3 out of 5 stars (108) | | Date First Available | May 9, 2020 | | Item Weight | 100 g | | Item dimensions W x H | 50 x 30 x 80 mm | | Item model number | KS0429 | | Manufacturer | keyes | | Product Dimensions | 5 x 3 x 8 cm; 100 g | ## Images ![KEYESTUDIO Water Quality TDS Meter Fully Melted Solids Sensor Module for Arduino Arduino Arduino Arduino Arduino Electronic Crafts - Image 1](https://m.media-amazon.com/images/I/51eEh2sLjkL.jpg) ![KEYESTUDIO Water Quality TDS Meter Fully Melted Solids Sensor Module for Arduino Arduino Arduino Arduino Arduino Electronic Crafts - Image 2](https://m.media-amazon.com/images/I/61DjDO-M+XL.jpg) ![KEYESTUDIO Water Quality TDS Meter Fully Melted Solids Sensor Module for Arduino Arduino Arduino Arduino Arduino Electronic Crafts - Image 3](https://m.media-amazon.com/images/I/611v1jMFuSL.jpg) ![KEYESTUDIO Water Quality TDS Meter Fully Melted Solids Sensor Module for Arduino Arduino Arduino Arduino Arduino Electronic Crafts - Image 4](https://m.media-amazon.com/images/I/51bkQebGQHL.jpg) ![KEYESTUDIO Water Quality TDS Meter Fully Melted Solids Sensor Module for Arduino Arduino Arduino Arduino Arduino Electronic Crafts - Image 5](https://m.media-amazon.com/images/I/517X6ckwpOL.jpg) ## Questions & Answers **Q: Will this work on salt (ocean) water (not continuously submerged)?** A: Depends on the tds level of the water. This meter only goes up to 1000 ppm. If the water is higher than that it won’t read it correctly **Q: Can this be left submerged permanently?** A: If you talk about the sensor itself, I would say yes. Depends a bit on the salinity of the fluid you are measuring. Sea water will destroy everything given enough time. Potable water should be OK. **Q: Can i use this sensor an esp32 board? the example code is for arduino uno** A: Yes it works just fine with an ESP 32. the example code works as well for the esp 32 **Q: Does this come with any calibration solutions or what is recommended for calibration?** A: it does not. Also, it only reads up to 1000ppm, so its ok for water quality testing, but not hydroponics nutrient solution. you can buy calibration solution on amazon ## Frequently Bought Together - KEYESTUDIO TDS Meter Probe Water Quality Monitoring V1 Sensor Module with XH2.54-3Pin Jumper Wire Connector for Arduino - KEYESTUDIO Turbidity Sensor Module V1 for Arduino,Water Quality Monitor Particles Water/Liquid Turbidity Level Tester - CQRobot TDS (Total Dissolved Solids) Meter Sensor Compatible with Raspberry Pi/Arduino Board. for Liquid Quality Analysis Teaching, Scientific Research, Laboratory, Online Analysis, etc. --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.be/products/744235660-keyestudio-water-quality-tds-meter-fully-melted-solids-sensor-module](https://www.desertcart.be/products/744235660-keyestudio-water-quality-tds-meter-fully-melted-solids-sensor-module) --- *Product available on Desertcart Belgium* *Store origin: BE* *Last updated: 2026-05-21*