--- product_id: 592336204 title: "TDS Sensor Water Conductivity Sensor Liquid Detection Sensor Water Quality Monitoring Sensor Module TDS Monitor Kit Analog Output" brand: "hiletgo" price: "141 kr" currency: DKK in_stock: true reviews_count: 1 category: "Hi Letgo" url: https://www.desertcart.dk/products/592336204-tds-sensor-water-conductivity-sensor-liquid-detection-sensor-water-quality store_origin: DK region: Denmark --- # 3.3~5.5V wide voltage input TDS range 0~1000ppm for water purity 0~2.3V analog output for precise readings TDS Sensor Water Conductivity Sensor Liquid Detection Sensor Water Quality Monitoring Sensor Module TDS Monitor Kit Analog Output **Brand:** hiletgo **Price:** 141 kr **Availability:** ✅ In Stock ## Summary > 💧 Stay ahead of water quality—because clean water is the new luxury. ## Quick Answers - **What is this?** TDS Sensor Water Conductivity Sensor Liquid Detection Sensor Water Quality Monitoring Sensor Module TDS Monitor Kit Analog Output by hiletgo - **How much does it cost?** 141 kr with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.dk](https://www.desertcart.dk/products/592336204-tds-sensor-water-conductivity-sensor-liquid-detection-sensor-water-quality) ## Best For - hiletgo enthusiasts ## Why This Product - Trusted hiletgo brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **AC Excitation Tech:** Prevents probe polarization, extending sensor life and ensuring stable, reliable data. - • **Plug & Play Precision:** Effortlessly integrate with 3.3V or 5V Arduino systems for instant water quality insights. - • **Health-First Monitoring:** Track Total Dissolved Solids (TDS) to safeguard your water’s cleanliness and your wellbeing. - • **Waterproof Probe Design:** Durable immersion-ready sensor ideal for continuous monitoring in domestic and hydroponic water. - • **Broad Voltage Compatibility:** Works seamlessly across a wide voltage range (3.3-5.5V) for versatile DIY projects. ## Overview The HiLetgo TDS Sensor Kit offers a professional-grade solution for monitoring water purity with a wide voltage input (3.3-5.5V) and analog output (0-2.3V), compatible with popular Arduino controllers. Featuring AC excitation to prevent probe polarization, it delivers stable, accurate TDS measurements (0-1000ppm) with ±10% accuracy, making it perfect for domestic water and hydroponic applications. Its waterproof probe ensures reliable long-term use, empowering you to DIY your own water quality detector and protect your health. ## Description Specifications: Input Voltage: 3.3 ~ 5.5V Output Voltage: 0 ~ 2.3V Working Current: 3 ~ 6mA TDS Measurement Range: 0 ~ 1000ppm TDS Measurement Accuracy: ± 10% F.S. (25 ℃) Module Size: 42 * 32mm Module Interface: PH2.0-3P Electrode Interface: XH2.54-2P Description: This is a TDS sensor/Meter Kit for measuring TDS value of the water, to reflect the cleanliness of the water. It can be applied to domestic water, hydroponic and other fields of water quality testing. You may also check Liquid Sensor Selection Guide to get better familar with our liquid sensor series. TDS (Total Dissolved Solids) indicates that how many milligrams of soluble solids dissolved in one liter of water. In general, the higher the TDS value, the more soluble solids dissolved in water, and the less clean the water is. Therefore, the TDS value can be used as one of the references for reflecting the cleanliness of water. This product supports 3.3-5.5V wide voltage input, and 0-2.3V analog voltage output, which makes it compatible with 5V or 3.3V control system or board. The excitation source is AC signal, which can effectively prevent the probe from polarization and prolong the life of the probe, meanwhile, increase the stability of the output signal. The TDS probe is waterproof, it can be immersed in water for long time measurement. Attention: 1.The probe can not be used in water above 55 degrees centigrade. 2.The probe can not be left too close to the edge of the container, otherwise it will affect the reading. 3.The head and the cable of the probe are waterproof, but the connector and the signal transmitter board are not waterproof. Please be careful. Package included: 1 x Analog TDS Sensor Meter 1 x TDS Probe 1 x PH2.0-3P Wire Review: Worked - Worked as expected and easy to connect with Arduino ## Features - Wide Voltage Input: 3.3~5.5V; Output Voltage: 0 ~ 2.3V - Analog signal output, compatible with most of 5V or 3.3V Arduino controllers - AC Excitation Source, effectively prevent probe from polarization - Plug and play, easy to use, you can build a TDS detector easily to measure the TDS value of liquid. - It can be used in water quality application, such as domestic water, hydroponics. So you can easily DIY a TDS detector to reflect the cleanliness of water to protect your health. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0CDWWNTTN | | Best Sellers Rank | #98,114 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #22 in Conductivity Meters & Accessories #906 in Lab Meters | | Date First Available | August 7, 2023 | | Item Weight | 0.634 ounces | | Manufacturer | HiLetgo | | Package Dimensions | 5.83 x 3.35 x 0.51 inches | ## Images ![TDS Sensor Water Conductivity Sensor Liquid Detection Sensor Water Quality Monitoring Sensor Module TDS Monitor Kit Analog Output - Image 1](https://m.media-amazon.com/images/I/61FGvLxnYSL.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ Worked *by S***S on November 14, 2025* Worked as expected and easy to connect with Arduino ## Frequently Bought Together - HiLetgo TDS Sensor Water Conductivity Sensor Liquid Detection Sensor Water Quality Monitoring Sensor Module TDS Monitor Kit Analog Output - CQRobot TDS (Total Dissolved Solids) Meter Sensor Compatible with Raspberry Pi/Arduino Board. for Liquid Quality Analysis Teaching, Scientific Research, Laboratory, Online Analysis, etc. - KEYESTUDIO Turbidity Sensor Module V1 for Arduino,Water Quality Monitor Particles Water/Liquid Turbidity Level Tester --- ## 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.dk/products/592336204-tds-sensor-water-conductivity-sensor-liquid-detection-sensor-water-quality](https://www.desertcart.dk/products/592336204-tds-sensor-water-conductivity-sensor-liquid-detection-sensor-water-quality) --- *Product available on Desertcart Denmark* *Store origin: DK* *Last updated: 2026-04-24*