--- product_id: 291830566 title: "HM Digital COM-80 Electrical Conductivity (EC) and Total Dissolved Solids Hydro r, 0-5000 ppm TDS Range, 1 ppm Resolution, 2% Readout Accuracy" brand: "hm digital" price: "SAR 158" currency: SAR in_stock: true reviews_count: 6 category: "Hm Digital" url: https://www.desertcart.com.sa/products/291830566-hm-digital-com-80-electrical-conductivity-ec-and-total-dissolved store_origin: SA region: Saudi Arabia --- # 0-5000 ppm TDS range Waterproof design 0.5 sec fast response HM Digital COM-80 Electrical Conductivity (EC) and Total Dissolved Solids Hydro r, 0-5000 ppm TDS Range, 1 ppm Resolution, 2% Readout Accuracy **Brand:** hm digital **Price:** SAR 158 **Availability:** ✅ In Stock ## Summary > 💧 Stay ahead in purity testing with precision and speed! ## Quick Answers - **What is this?** HM Digital COM-80 Electrical Conductivity (EC) and Total Dissolved Solids Hydro r, 0-5000 ppm TDS Range, 1 ppm Resolution, 2% Readout Accuracy by hm digital - **How much does it cost?** SAR 158 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.com.sa](https://www.desertcart.com.sa/products/291830566-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 - • **Built to Last:** Waterproof and lightweight (59g) for rugged outdoor and indoor use - • **Long-Lasting Power:** Up to 2 years battery life with included LR44 batteries - • **User-Friendly Controls:** Push-button digital calibration and hold function for effortless operation - • **Precision at Your Fingertips:** 1 ppm resolution for ultra-accurate readings - • **Smart Temperature Compensation:** Automatic Temperature Compensation (ATC) ensures reliable data every time ## Overview The COM-80 EC/TDS HydroTester is a compact, waterproof digital meter designed for precise measurement of electrical conductivity, total dissolved solids, and temperature. Featuring a wide 0-5000 ppm range, 1 ppm resolution, and rapid 0.5-second response time, it’s perfect for hydroponics, water quality monitoring, and commercial applications. With automatic temperature compensation, push-button calibration, and a 2-year battery life, it delivers reliable, professional-grade performance in a sleek, portable design. ## Description Product Description: NEW! The COM-80 is an economically priced, reliable EC/TDS meter (ppm pen / nutrient r) 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: BUY IT - Awesome Review: Gutes teil - 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), TDS and temperature. - Automatic Temperature Compensation (ATC) - Hold button and Auto shut-off - Digital Calibration (push button) ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B008SOPO10 | | Additional Features | Waterproof | | Age Range Description | All Ages | | Age range (description) | All Ages | | Battery Life | 2 years | | Brand | HM Digital | | Brand Name | HM Digital | | Color | Blue | | Colour | Blue | | Customer Reviews | 4.4 out of 5 stars 761 Reviews | | Display Type | Digital | | Global Trade Identification Number | 00891144000229 | | Immersion Depth | 15.5 Centimeters | | Included Components | Protective cap, 3 x 1.5V button cell batteries (LR44 or equivalent) | | 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 Centimeters | | Item Weight | 0.13 Pounds | | Manufacturer | HM Digital | | Model | EC/TDS HydroTester Series | | Model Name | EC/TDS HydroTester Series | | Number of Batteries | 3 LR44 batteries required. | | Outer Material | Plastic | | Outer material | Plastic | | Part Number | COM-80 | | Power Source | Battery Powered | | Product Care Instructions | Wipe Clean | | Resolution | 1 ppm | | Response Time | 0.5 seconds | | Reusability | Rechargeable | | Smart Home Compatibility | Not Smart Home Compatible | | Special features | Waterproof | | Style Name | Contemporary | | UPC | 891144000229 | | Unit Count | 1 Count | | Upper Temperature Range | 9990 Degrees Celsius | ## Product Details - **Age range (description):** All Ages - **Brand:** HM Digital - **Colour:** Blue - **Included components:** Protective cap, 3 x 1.5V button cell batteries (LR44 or equivalent) - **Special features:** Waterproof ## Images ![HM Digital COM-80 Electrical Conductivity (EC) and Total Dissolved Solids Hydro r, 0-5000 ppm TDS Range, 1 ppm Resolution, 2% Readout Accuracy - Image 1](https://m.media-amazon.com/images/I/61o4J+qE4wL.jpg) ![HM Digital COM-80 Electrical Conductivity (EC) and Total Dissolved Solids Hydro r, 0-5000 ppm TDS Range, 1 ppm Resolution, 2% Readout Accuracy - Image 2](https://m.media-amazon.com/images/I/51MH-iekPeL.jpg) ![HM Digital COM-80 Electrical Conductivity (EC) and Total Dissolved Solids Hydro r, 0-5000 ppm TDS Range, 1 ppm Resolution, 2% Readout Accuracy - Image 3](https://m.media-amazon.com/images/I/61pEVXW+pVL.jpg) ![HM Digital COM-80 Electrical Conductivity (EC) and Total Dissolved Solids Hydro r, 0-5000 ppm TDS Range, 1 ppm Resolution, 2% Readout Accuracy - Image 4](https://m.media-amazon.com/images/I/61IGgm-VN8L.jpg) ![HM Digital COM-80 Electrical Conductivity (EC) and Total Dissolved Solids Hydro r, 0-5000 ppm TDS Range, 1 ppm Resolution, 2% Readout Accuracy - Image 5](https://m.media-amazon.com/images/I/31qYfe-L8jL.jpg) ## 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 ### ⭐⭐⭐⭐⭐ BUY IT *by M***D on 19 June 2026* Awesome ### ⭐⭐⭐⭐⭐ Gutes teil *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. ### ⭐⭐⭐⭐⭐ Worth product *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.com.sa/products/291830566-hm-digital-com-80-electrical-conductivity-ec-and-total-dissolved](https://www.desertcart.com.sa/products/291830566-hm-digital-com-80-electrical-conductivity-ec-and-total-dissolved) --- *Product available on Desertcart Saudi Arabia* *Store origin: SA* *Last updated: 2026-07-04*