--- product_id: 72620744 title: "HM Digital 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: "€ 80.96" currency: EUR in_stock: true reviews_count: 6 category: "Hm Digital" url: https://www.desertcart.at/products/72620744-hm-digital-com-80-electrical-conductivity-ec-and-total-dissolved store_origin: AT region: Austria --- # 0-9990 µS EC range 0-5000 ppm TDS precision Automatic Temperature Compensation HM Digital 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:** € 80.96 **Availability:** ✅ In Stock ## Summary > 💧 Stay ahead of the curve with precision water testing in your pocket! ## Quick Answers - **What is this?** HM Digital 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?** € 80.96 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.at](https://www.desertcart.at/products/72620744-hm-digital-com-80-electrical-conductivity-ec-and-total-dissolved) ## 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 - • **Compact & Portable:** Lightweight 59g tester fits perfectly in your toolkit or pocket for anytime testing. - • **Instant, Clear Digital Display:** High-resolution 1 ppm readout for quick, confident decisions on the go. - • **Versatile Multi-Scale Readings:** Four measurement scales (µS, mS, ppm, ppt) to cover all your water quality needs. - • **Built for Real-World Conditions:** Water-resistant design ensures durability in hydroponics, pools, and aquariums. - • **Precision that Powers Your Growth:** Measures EC and TDS with ±2% accuracy for reliable nutrient testing. ## Overview The HM Digital COM-80 is a compact, battery-powered EC and TDS meter offering precise water quality measurements with a 0-5000 ppm TDS range and ±2% accuracy. Featuring four measurement scales and automatic temperature compensation, it’s water-resistant and ideal for hydroponics, aquariums, pools, and commercial water systems. ## 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. Review: Does what it says - Happy , does what it says Review: Das Gerät macht einen sehr guten Eindruck und fühlt sich auch hochwertig an. In der Hand liegt es angenehm und wirkt gut verarbeitet. Natürlich hofft man, dass die angezeigten Werte korrekt sind, aber nach einiger Zeit im Einsatz habe ich den Eindruck, dass die Messungen zuverlässig sind. Die Werte wirken konsistent und werden immer wieder gleich angezeigt. Insgesamt bin ich sehr zufrieden, daher volle Punkte. ## 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 | | Age Range Description | All Ages | | Battery Life | 2 years | | Best Sellers Rank | 60,129 in Garden ( See Top 100 in Garden ) 11 in Water Garden & Pond Test Kits | | Brand | HM Digital | | Colour | White | | Country Of Origin | China | | Customer Reviews | 4.4 4.4 out of 5 stars (753) | | Display Type | Digital | | Global Trade Identification Number | 00891144000229 | | Immersion Depth | 15.5 Centimetres | | Included Components | Protective cap, 3 x 1.5V button cell batteries (LR44 or equivalent) | | Indoor Outdoor Usage | Outdoor | | Inner Material | Plastic/Rubber | | Item Length | 15.3 Centimetres | | Item Weight | 0.13 Pounds | | Manufacturer | HM Digital | | Manufacturer Part Number | COM-80 | | Model Name | HydroTester | | Model Number | EC/TDS HydroTester Series | | Number of Batteries | 3 LR44 batteries required. | | Outer Material | Plastic or Rubber | | Power Source | Battery Powered | | Product Care Instructions | Wipe Clean | | Resolution | 1 µS/ppm; 0.1 mS | | Response Time | 0.5 seconds | | Reusability | Rechargeable | | Smart Home Compatibility | Not Smart Home Compatible | | Special Features | Waterproof | | Specification Met | 0-9990 µS; 0-5000 ppm; 0-9.9 mS; 0-5.0 ppt | | Style Name | Minimalist | | UPC | 891144000229 | | Unit Count | 1.0 count | | Upper Temperature Rating | 9990 Degrees Celsius | ## Product Details - **Age range (description):** All Ages - **Brand:** HM Digital - **Colour:** White - **Display type:** Digital - **Included components:** Protective cap, 3 x 1.5V button cell batteries (LR44 or equivalent) - **Outer material:** Plastic or Rubber - **Product care instructions:** Wipe Clean - **Special feature:** Waterproof - **Specification met:** 0-9990 µS; 0-5000 ppm; 0-9.9 mS; 0-5.0 ppt - **Unit count:** 1.0 count ## Images ![HM Digital 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 ## Customer Reviews ### ⭐⭐⭐⭐⭐ Does what it says *by D***C on 26 December 2021* Happy , does what it says ### ⭐⭐⭐⭐⭐ Review *by S***R on 14 March 2026* Das Gerät macht einen sehr guten Eindruck und fühlt sich auch hochwertig an. In der Hand liegt es angenehm und wirkt gut verarbeitet. Natürlich hofft man, dass die angezeigten Werte korrekt sind, aber nach einiger Zeit im Einsatz habe ich den Eindruck, dass die Messungen zuverlässig sind. Die Werte wirken konsistent und werden immer wieder gleich angezeigt. Insgesamt bin ich sehr zufrieden, daher volle Punkte. ### ⭐⭐⭐⭐⭐ Review *by A***N on 21 April 2023* Good EC reading ## 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.at/products/72620744-hm-digital-com-80-electrical-conductivity-ec-and-total-dissolved](https://www.desertcart.at/products/72620744-hm-digital-com-80-electrical-conductivity-ec-and-total-dissolved) --- *Product available on Desertcart Austria* *Store origin: AT* *Last updated: 2026-05-06*