By: HM Digital
The HM Digital COM-80 Electrical Conductivity (EC) and Total Dissolved Solids Hydro Tester is the best in its class for easy to read, build quality, easy to use and overall performance. With a range of 0-5000 ppm TDS and a resolution of 1 ppm, it offers a readout accuracy of 2%. This high-quality product from HM Digital is the perfect choice for reliable and accurate readings.
Aanchal: Good EC reading
India on Apr 21, 2023
Client d'Amazon: Acheter pour contrôler la conductibilité de mon eau pour les changements d eau de mon aquarium.
Pas de notice en français, un peu compliqué pour les réglages . Lecture un peu petit , manque éclairage comme certain modèle.
Un peu dessus pour ma part . Ceci dit , ça fait son taf.
France on Apr 16, 2023
Jayasurya: Very accurate Reading.
India on Mar 23, 2023
Nick: Factory calibrated must be modern company speak for you better calibrate it yourself and not trust them. I don’t think it would be some how dishonest to be honest and tell your customers to calibrate it. Factory calibration was 50 points off. No. If deal that why you should calibrate it. Pens great and easy to calibrate lol
United States on Feb 19, 2023
Judith Krogh: After product did not turn on, thinking the batteries were dead and buying new batteries and product still didn't work, I eventually tried pinching the contact legs to see if that was the problem. After doing that the product turned on. So if anyone is having issues with their device give that a try.
United States on Feb 13, 2023
Deano9: Purchased a tester for $100 and returned it for this one at 1/3 of the price and it’s much more accurate and easier to use…
United States on Jan 04, 2023
dswoboda: How did I go without this matter for so long. It has greatly simplified my hydroponics and my plants are happy about that. I know exactly where my nutrients are and can make the proper adjustments. Very simple and easy to use. Highly recommended.
United States on Oct 31, 2022
Luca: ottimo prodotto, misure eccellenti
Italy on Oct 17, 2022
MountainCamping: I've tried this at an apartment (harder water than expected), Brita filtered water from same apartment (not a big difference), a new house on well water (extremely hard, which is how we found out our water softener wasn't turned on yet), reverse osmosis water (almost 0 dissolved solids) and distilled water (ZERO dissolved solids). So it seems to be pretty accurate. It also reads temperature, which we were curious about with the well and cistern. Would buy again.
United States on Apr 01, 2022
| HM Digital COM-80 Electrical Conductivity and Total Dissolved Solids Tester for Accurate Hydro Testing | Apera Instruments AI316 Premium Series PC60 5-in-1 Waterproof pH/EC Meter - Test Water Quality with Professional Accuracy | Accurate Digital Water Tester - ppm Meter, EC & Temperature Measurement Pen 3-in-1 | |
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| B2B Rating |
79
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96
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93
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| Sale off | $22 OFF | $30 OFF | $4 OFF |
| Total Reviews | 37 reviews | 148 reviews | 349 reviews |
| Date First Available | August 4, 2012 | April 22, 2016 | September 24, 2019 |
| Best Sellers Rank | #5 in Conductivity Meters & Accessories | #2 in Lab Multiparameter Meters | #3 in Conductivity Meters & Accessories#130 in Lab Meters |
| ASIN | B008SOPO10 | B01ENFOIKA | B07V7YZX81 |
| Conductivity Meters & Accessories | Conductivity Meters & Accessories | Conductivity Meters & Accessories | |
| Manufacturer | No | No | Health Metric |
| Product Dimensions | 6 x 0.6 x 1.3 inches; 2.08 Ounces | 7 x 1.6 x 1.6 inches; 4.7 Ounces | |
| Batteries | 3 LR44 batteries required. | 4 AAA batteries required. | 1 C batteries required. |
| Customer Reviews | 4.6/5 stars of 618 ratings | 4.5/5 stars of 912 ratings | 4.3/5 stars of 4,184 ratings |
| Is Discontinued By Manufacturer | No | No | |
| Item model number | HMDCOM80 | AI316 |
Spain on Aug 09, 2023