

💧 Know your water, own your health — don’t drink blind!
The TDS Meter Digital Water Tester is a professional-grade device designed to measure total dissolved solids (TDS), temperature, and electrical conductivity (EC) in water. Featuring a wide detection range of 0-9999 ppm, a replaceable CR-2032 battery, and an auto-off function, it delivers fast, accurate readings in a compact, portable form factor complete with a protective carrying case. Ideal for ensuring drinking water purity, monitoring RO/DI systems, and aquarium maintenance.







| ASIN | B079DN9DRS |
| Batteries | 1 Lithium Metal batteries required. (included) |
| Best Sellers Rank | #28,321 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #7 in Lab Multiparameter Meters |
| Date First Available | January 28, 2018 |
| Is Discontinued By Manufacturer | No |
| Item Weight | 2.08 ounces |
| Item model number | 6.65059E+11 |
| Manufacturer | Lxuemlu |
| Product Dimensions | 6.3 x 1.1 x 0.6 inches |
P**.
Efficient and Easy
Needed to test my water here in Florida and this device is so easy to use. I have a filtration system at one of my sinks which I wasn't sure was still operating at optimum level. I did a test of that system compared to my regular sink and results were incredible. It confirmed that my filtration system was still doing its job and that the water at the sink was not suitable for drinking. The device is easy to use and quick. Inexpensive and works great.
J**N
It performs great
It works perfect
R**E
Water Tester To Ensure That Your Family Stays Healthy And Hydrated, Here Are My Notes…
This item has been with me for a very short time. I am absolutely excited about my recent order of the TDS Meter Digital Water Tester Lxuemlu Professional 3-in-1 temperature & EC meter with a carrying case! This incredible device is very important to me, as it allows me to accurately measure the Total Dissolved Solids (TDS) in my water, ensuring that I have clean and safe drinking water at all times. Not only does it provide precise TDS readings, but it also has a temperature measurement function and an electrical conductivity (EC) meter, giving me a comprehensive analysis of my water quality. The compact size and the included carrying case make it incredibly convenient to take with me wherever I go. I hope you find this review helpful.
M**E
Satisfied
Nothing to compare against but satisfied with product and self-consistency across measurements.
W**K
Recommended TDS tool. Here’s why...
I’m growing chili peppers hydroponically. I need to test my TDS to ensure the proper nutrient concentration in the water. This tool measures the TDS, EC, and temperature (both C and F). It appears to be accurate as far as I can tell. I tested our tap water and the screen turned red and showed the PPM over 600 (?!?). Then I tested our filtered water from the fridge which has a cheap filter and it was still red and over 600 ppm. Next it tested bottled water from the dispenser and it was around 300. Finally, I tested some distilled water and it read 0. The controls are easy: on/off/hold (which only holds the PPM/EC, not the temp), clear, and mode (to switch between PPM, EC, Temo C, and Temp F). The meter appears to be fairly consistent. I don’t have a good way to test the accuracy other than filtered water, but it’s certainly trustworthy enough for my purposes. The instructions claim that the TDS calculation compensates for temperature, and I believe that since it reads temperature. I do wish there was a way to get the raw EC value because the conversion factor has a large dependence on the type of solids suspended in the water. From what I’ve read, you need to be careful not to submerge too much of the meter so that water won’t come into contact with the internal electronics. I haven’t tested this, but keep the water between the min/max levels and be careful not to drop into the water.
L**Y
The reader is about 200-300 PPM off the mark
The first image is the TDS reading from one of my shrimp tanks. The idea that my TDS is 531 ppm is absolute absurdity. At that range my shrimp should be failing to molt and dying. I have multiple colonies of cherry red shrimp, blue dream shrimp, amano shrimp, and a single bamboo shrimp. I have not lost a single shrimp, especially not to a failed molt. It's far more likely the TDS is at about 231 or 331, a range livable by the shrimp. The second image is me reading RODI water straight from the system. It reads at about a 3 but after the water cools and settles it'll read a 0. It really seems like the accuracy only works when you are trying to read if you RODI system is working or not. Otherwise checking your tanks TDS is utterly useless with this device. Sure its easy to use and read, but I guess with this thing being so cheap you get what you pay for in terms of accuracy. Only purchase if you intend to use it to read straight RODI water, otherwise, skip this item.
N**E
I don't trust it
I purchased this because I was having an issue with hard water. I also got a few hard water strip tests. I compared the result between my house, my folks house and my sisters house. We all live in the same city, but some houses have water softeners, and one house has water filtration systems, so one would think the readings would be different. House 1 with just a water softener had the lowest contamination. House 2 with a softener and a filter had the highest hard water and contamination. House 3 with just a filtration system had the hardest water- so that made sense. It also was very different from the paper water hardness test stripes that I got. I couldn't validate anything, so its hard for me to trust the results. The reader itself was easy to manage. You put the tip in a cup of water, and the results can be compared to the numbers on the back of the reader. You can toggle between hardness and contamination results.
C**E
It Seems To Work
I got this to test the different levels of TDS (Total Dissolved Solids) between direct tap water provided by my municipality, bottled "smart" water purchased in a store, and filtered tap water using a carbon filter used in a typical filtered water dispenser. I expected the purchased bottled "smart" water to have the lowest TDS levels and it did not. I expected the filtered tap water to have a higher TDS level than the bottled "smart" water but it did not. To my surprise, the filtered tap water had the lowest total TDS level of all. Summary: 1 - Tap water had the highest TDS level, 2 - Bottled "smart" water had the next highest TSD level, 3 - Filtered tap water had the lowest TDS levels It would have been an interesting experiment to take the bottled "smart" water and put it through the carbon filter and see if its TDS level would be lower than the filtered tap water but I didn't extend the experiment to that step. In any case, whether your results are the same will depend on your own municipalities' filtration quality and the quality or brand of bottled water you use. I highly recommend this economical Digital Water Tester.
U**O
Dopo vari acquisti andati male finalmente ho trovato un quelli giusto provato su acqua in bottiglia su acqua rubinetto su acqua analizzata da analista professionale e direi che la corrispondenza del TDS e conducibilità elettrica si disostavano da poco più o meno tra un controllo e l'altro, direi che sono soddisfatto dell' acquisto al momento sperando in futuro che continui così
R**I
Great product
P**F
I was a bit concerned about quality before purchasing but am delighted with the product. I tested it with distilled water and it showed the TDS as 0 ppm with the EC as 1 µS/cm. Tap water was 285ppm TDS and the EC was 606 µS/cm. Testing the water in my hydroponic unit showed the TDS as 921 and EC as 1959 µS/cm. These all seemed right. The unit itself is very easy to use and quick to respond. Recommended.
A**N
Useful as needed to test water quality for caravan.comes in a nice sleek sleeve.
R**B
Why did you choose this product over others?: Reasonable price, uses one common battery. Filtered tap water has better TDS&EC.
Trustpilot
3 days ago
2 weeks ago