--- product_id: 5343427 title: "COM-80 Electrical Conductivity (EC) and Total Dissolved Solids Hydro Tester, 0-5000 ppm TDS Range, 1 ppm Resolution, +/- 2% Readout Accuracy" brand: "hm digital" price: "€ 61.24" currency: EUR in_stock: true category: "Hm Digital" url: https://www.desertcart.be/products/5343427-com-80-electrical-conductivity-ec-and-total-dissolved-solids-hydro store_origin: BE region: Belgium --- # 0-5000 ppm TDS range Water resistant design 0.5 sec fast response COM-80 Electrical Conductivity (EC) and Total Dissolved Solids Hydro Tester, 0-5000 ppm TDS Range, 1 ppm Resolution, +/- 2% Readout Accuracy **Brand:** hm digital **Price:** € 61.24 **Availability:** ✅ In Stock ## Summary > 💡 Stay ahead with precision—because your water quality deserves the best. ## Quick Answers - **What is this?** COM-80 Electrical Conductivity (EC) and Total Dissolved Solids Hydro Tester, 0-5000 ppm TDS Range, 1 ppm Resolution, +/- 2% Readout Accuracy by hm digital - **How much does it cost?** € 61.24 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/5343427-com-80-electrical-conductivity-ec-and-total-dissolved-solids-hydro) ## Best For - hm digital enthusiasts ## Why This Product - Trusted hm digital brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Smart Auto Functions:** Auto-off, data-hold, and low-battery alerts keep your workflow uninterrupted. - • **Multi-Scale Versatility:** Four measurement scales (µS, mS, ppm, ppt) adapt seamlessly to any testing need. - • **Built for Real-World Use:** Water resistant and compact 15.3 cm design fits perfectly in your toolkit or pocket. - • **Broad Application Spectrum:** Ideal for hydroponics, aquariums, pools, and industrial water systems—be the expert in any environment. - • **Precision at Your Fingertips:** 1 ppm resolution with ±2% accuracy ensures lab-grade readings every time. ## Overview The HM Digital COM-80 is a compact, battery-powered EC and TDS meter offering a 0-5000 ppm range with 1 ppm resolution and ±2% accuracy. Featuring four measurement scales, automatic temperature compensation, and water resistance, it delivers fast 0.5-second readings. Designed for professionals managing hydroponics, aquariums, pools, and industrial water systems, it includes smart functions like auto-off, data-hold, and low-battery alerts for reliable, on-the-go testing. ## Description Product Description: NEW! The COM-80 is an economically priced, reliable EC/TDS meter (ppm pen / nutrient tester) that is ideal for testing applications such as hydroponics & gardening, pools & spas, aquariums & reef tanks, water ionizers, drinking water and more. Also great for commercial applications, such as boilers and cooling towers and filtration and purification systems. ## Features - Measures electrical conductivity (EC), total dissolved solids (TDS). Exellent for nutrient testing. - Four scales: EC: µS, mS; TDS: ppm, ppt - Automatic Temperature Compensation (ATC) - Water resistant ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B008SOPO10 | | Additional Features | Auto-off function, data-hold function, and low-battery indicator | | Age Range Description | Adult | | Best Sellers Rank | #17,760 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #3 in Conductivity Meters & Accessories | | Brand Name | HM Digital | | Color | White | | Customer Reviews | 4.5 4.5 out of 5 stars (798) | | Display Type | LCD | | Global Trade Identification Number | 00891144000229 | | Immersion Depth | 15.5 centimeters | | Included Components | Battery | | Indoor Outdoor Usage | Indoor | | Inner Material | Plastic/Rubber | | Item Length | 15.3 centimeters | | Item Weight | 2.08 ounces | | Manufacturer | HM Digital | | Model | EC/TDS HydroTester Series | | Model Name | EC/TDS HydroTester Series | | Number of Batteries | 3 LR44 batteries required. | | Outer Material | Plastic | | Part Number | COM-80 | | Product Care Instructions | Wipe Clean | | Resolution | 1 µS/ppm; 0.1 mS | | Response Time | 0.5 seconds | | Reusability | Reusable | | Style Name | Specialized Utilitarian Digital | | UPC | 891144000229 | | Unit Count | 1 Count | | Upper Temperature Range | 80 °C | ## Product Details - **Age Range (Description):** Adult - **Brand:** HM Digital - **Color:** White - **Display Type:** LCD - **Included Components:** Battery - **Model Name:** EC/TDS HydroTester Series - **Outer Material:** Plastic - **Product Care Instructions:** Wipe Clean - **Special Feature:** Auto-off function, data-hold function, and low-battery indicator - **Unit Count:** 1 Count ## Images ![COM-80 Electrical Conductivity (EC) and Total Dissolved Solids Hydro Tester, 0-5000 ppm TDS Range, 1 ppm Resolution, +/- 2% Readout Accuracy - Image 1](https://m.media-amazon.com/images/I/61o4J+qE4wL.jpg) ## Available Options This product comes in different **Style** options. ## Questions & Answers **Q: will this measure ammonia?** A: It will not measure ammonia. **Q: It serves to measure colloidal silver?** A: I Use It To Measure The Electrical Conductivity Of Water AndTo Determine The Parts Pert Million Of Any Particulants In A Solution, In My Case Water. **Q: Does it measure EC with a decimal point, i.e. 3.5?** A: Depends on scale used. 0 - 9999us scale (1.0 resolution) 0 - 9.9ms scale (0.1 resolution) **Q: does this measure ph, salt, chlorine levels?** A: No, this meter measures EC (electroconductivity) and TDS (total dissolved solids) on four scales: EC: µS, mS; TDS: ppm, ppt ## Frequently Bought Together - HM Digital COM-80 Electrical Conductivity (EC) and Total Dissolved Solids Hydro Tester, 0-5000 ppm TDS Range, 1 ppm Resolution, 2% Readout Accuracy - HM Digital C342 TDS and EC Calibration Solution, 342 ppm (NaCl), 90 ml Volume, Transparent/Blue - HM Digital 1000ppm TDS Calibration Solution --- ## 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/5343427-com-80-electrical-conductivity-ec-and-total-dissolved-solids-hydro](https://www.desertcart.be/products/5343427-com-80-electrical-conductivity-ec-and-total-dissolved-solids-hydro) --- *Product available on Desertcart Belgium* *Store origin: BE* *Last updated: 2026-11-02*