--- product_id: 135264985 title: "Meiqqm Analog TDS Sensor Water Conductivity Sensor for Arduino Liquid Detection Water Quality Monitoring Module DIY TDS Online Monitor" brand: "meiqqm" price: "€ 0.09" currency: EUR in_stock: false url: https://www.desertcart.hr/products/135264985-meiqqm-analog-tds-sensor-water-conductivity-sensor-for-arduino-liquid store_origin: HR region: Croatia --- # Water Quality Plug & Play DIY Friendly Meiqqm Analog TDS Sensor Water Conductivity Sensor for Arduino Liquid Detection Water Quality Monitoring Module DIY TDS Online Monitor **Brand:** meiqqm **Price:** € 0.09 **Availability:** ❌ Out of Stock ## Summary > 💡 Elevate Your Water Game with Meiqqm! ## Quick Answers - **What is this?** Meiqqm Analog TDS Sensor Water Conductivity Sensor for Arduino Liquid Detection Water Quality Monitoring Module DIY TDS Online Monitor by meiqqm - **How much does it cost?** € 0.09 with free shipping - **Is it available?** Currently out of stock - **Where can I buy it?** [www.desertcart.hr](https://www.desertcart.hr/products/135264985-meiqqm-analog-tds-sensor-water-conductivity-sensor-for-arduino-liquid) ## Best For - meiqqm enthusiasts ## Why This Product - Trusted meiqqm brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Waterproof Wonder:** Designed for long-term immersion without worry. - • **Versatile Applications:** Perfect for domestic water, hydroponics, and more. - • **No More Polarization Woes:** AC excitation source prevents probe polarization. - • **Seamless Arduino Integration:** Plug and play with no soldering required. - • **Transform Your Water Quality:** Easily DIY a TDS detector for pristine water. ## Overview The Meiqqm Analog TDS Sensor is a cutting-edge water conductivity sensor designed for Arduino enthusiasts. Ideal for monitoring water quality in various applications, this sensor features a waterproof probe for long-term use, an AC excitation source to prevent polarization, and easy plug-and-play connectivity, making it perfect for DIY projects. ## Description Product introduction The commonly used TDS testing equipment is a TDS pen. Although it is inexpensive and easy to use, it cannot transmit data to the control system, do long-term online monitoring, and analyze the water quality. Using a special instrument, although the data can be transmitted, the accuracy is high, but the price is very expensive. To this end, we have specially introduced this Arduino-compatible TDS sensor, which can be used to measure the TDS value of water after connecting to the Arduino controller. Designed for arduino, this product is plug and play and easy to use. The wide voltage supply of 3.3~5.5V and the analog signal output of 0~2.3V make this product compatible with 5V, 3.3V control system, which can be easily used in the ready-made control system. Notice: Due to product listing restrictions, ask me for source code after purchase. TDS probes cannot be used in water above 55 °C. The TDS probe should not be placed too close to the edge of the container, as it will affect the display. The head and lead of the TDS probe are waterproof and can be immersed in water, but the connection interface and the signal adapter board are not waterproof. Please pay attention to use. Features 1. Wide voltage operation: 3.3~5.5V 2. 0~2.3V analog signal output, compatible with 5V, 3.3V two control systems Technical specifications Signal adapter board: Input voltage: 3.3~5.5V Output signal: 0~2.3V Working current: 3~6mA TDS measurement range: 0~1000ppm TDS measurement accuracy: ±10% F.S. (25°C) Module interface: XH2.54-3P Electrode interface: XH2.54-2P TDS probe: Number of probes: 2 Overall length: 83cm Connection interface: XH2.54-2P Other: Waterproof probe Package included: 1 * TDS signal adapter board 1 * Waterproof TDS probe 1 * Analog sensor line ## Features - The product can be applied to water quality testing in the fields of domestic water, hydroponics and the like. - With this sensor, you can easily DIY a TDS detector, and easily check the cleanliness of the water to make your water quality better. - The excitation source is an AC signal, effectively preventing probe polarization - Waterproof probe for long-term immersion in water(The module has no write function) - Arduino compatible, easy to connect, plug and play, no soldering required ## Technical Specifications | Specification | Value | |---------------|-------| | Part number | Meiqqm | | Material type | Metal-Plastic | | Manufacturer | Meiqqm | | Manufacturer reference | Meiqqm | | ASIN | B07RZKYG6R | ## Product Details - **Colour:** White - **Brand:** Meiqqm - **Manufacturer:** Meiqqm ## Images ![Meiqqm Analog TDS Sensor Water Conductivity Sensor for Arduino Liquid Detection Water Quality Monitoring Module DIY TDS Online Monitor - Image 1](https://m.media-amazon.com/images/I/51GJ0XnZCtL.jpg) ![Meiqqm Analog TDS Sensor Water Conductivity Sensor for Arduino Liquid Detection Water Quality Monitoring Module DIY TDS Online Monitor - Image 2](https://m.media-amazon.com/images/I/51A-TFewB7L.jpg) ![Meiqqm Analog TDS Sensor Water Conductivity Sensor for Arduino Liquid Detection Water Quality Monitoring Module DIY TDS Online Monitor - Image 3](https://m.media-amazon.com/images/I/51ST8r4x9WL.jpg) ![Meiqqm Analog TDS Sensor Water Conductivity Sensor for Arduino Liquid Detection Water Quality Monitoring Module DIY TDS Online Monitor - Image 4](https://m.media-amazon.com/images/I/51RCaPI6KKL.jpg) ![Meiqqm Analog TDS Sensor Water Conductivity Sensor for Arduino Liquid Detection Water Quality Monitoring Module DIY TDS Online Monitor - Image 5](https://m.media-amazon.com/images/I/613wN+fNx-L.jpg) --- ## 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.hr/products/135264985-meiqqm-analog-tds-sensor-water-conductivity-sensor-for-arduino-liquid](https://www.desertcart.hr/products/135264985-meiqqm-analog-tds-sensor-water-conductivity-sensor-for-arduino-liquid) --- *Product available on Desertcart Croatia* *Store origin: HR* *Last updated: 2026-05-18*