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2024 Upgraded TDS Meter Digital Water Tester, DUMSAMKER Professional 3-in-1 TDS, Temperature and EC Meter with Carrying Case, 0-9999ppm, Ideal ppm Meter for Drinking Water, Aquariums and More

4.4 4.4 out of 5 stars 6,061 ratings
$13.96 with 7 percent savings
List Price: $14.99

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Purchase options and add-ons

  • ✅ TEST YOUR WATER: How Pure is Your Water? With the push of a button, the TDS water tester can tell you your overall water purity level, which will be displayed on the screen in ppm (parts per million)
  • ✅EASY TO USE AND ACCURATE: Just stick it in about 1 inch of water instantly you get the reading. It's compact and doesn't need any maintenance. The TDS water tester is a rugged model that includes a protective carrying case with belt clip
  • ✅MEASUREMENT RANGE: 0-9990 ppm. From 0-999 ppm, the resolution is in increments of 1ppm. From 1000 to 9990 ppm, the resolution is in increments of 10ppm, indicated by a blinking 'x10' image
  • ✅AUTO-OFF AND HOLD FUNCTION: The TDS tester shuts off automatically after 2 minutes of non-use to conserve batteries. Features a hold function that saves measurements for convenient reading and recording
  • ✅CUSTOMER SATISFACTION: We stand behind our products and will always focus on your satisfaction. If you don't love our products, please don't hesitate to contact us

Frequently bought together

2024 Upgraded TDS Meter Digital Water Tester, DUMSAMKER Professional 3-in-1 TDS, Temperature and EC Meter with Carrying Case,
$13.96
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Bestprod All-New 20 in 1 Drinking Water Testing Kit 120 Strips, Home Tap and Well Water Test Kit for Hardness, Lead, Iron, Co
$23.99
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Water Testing Kits for Drinking Water: 125 Strips 16 in 1 Well and Drinking Water Test Kit, TESPERT Water Test Strips with Ha
$17.99 ($0.14/Count)
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Product details

  • Is Discontinued By Manufacturer ‏ : ‎ No
  • Product Dimensions ‏ : ‎ 6 x 3 x 0.5 inches; 2.08 ounces
  • Item model number ‏ : ‎ DU-TDSW
  • Batteries ‏ : ‎ 1 Lithium Metal batteries required. (included)
  • Date First Available ‏ : ‎ September 6, 2018
  • Manufacturer ‏ : ‎ DUMSAMKER
  • ASIN ‏ : ‎ B07H578WWT
  • Customer Reviews:
    4.4 4.4 out of 5 stars 6,061 ratings

Product Description

333333

CONCERNED ABOUT YOUR WATER QUALITY?

DUMSAMKER TDS Water Quality Test Meter performs as a guard who helps monitor water quality to tell you whether the water meets standards of drinking, so that you have a clear mind of water status and take measures to protection water safety for your family.

How to use

1.Remove the protective case and press ON/OFF button.

2. Immerse the TDS meter into the water.

3. Stirring the water tester and waiting the display stabilizes.

4. Wipe the meter with towel.

5. Press ON/OFF for 3 seconds and it will shut down.

Product Details

  • TDS Range: 0-9990 ppm ± 2%
  • EC Range: 0-9990 μs/cm ± 2%
  • Temperature Range: 32.0-122.0°F
  • Hold Function: lock and record the readings
  • Auto-off Function: extended battery life
33333

What Is TDS And Why Should You Care

TDS = Total Dissolved Solids, which is any salt, metal or mineral in the water. The lower the TDS level in the water, the more efficiently your bodys cells can use the water. Conversely, higher TDS levels can indicate water that is more difficult for your body to use and has more contaminants that can pose health risks.

44444

A Must-Have Tool for RO Systems

The ppm pen is the perfect tool for measuring and tracking your waters levels of TDS to make sure your water filter is doing its job. With this water ppm tester, you wont just need to take the filter manufacturers word that it reduces TDS in your water; you can put it to the test!

About TDS

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33333

A Must-Have Tool for Kitchen, Aquarium, Hydroponics

How Pure is Your Water? With the push of one button, the digital TDS water tester will read overall water purity level, which will be displayed on the screen in ppm (parts per million). DUMSAMKER TDS water testing meter is ideal for all water purification applications, thus to check whether your water filter is doing its job right and when to change the filter. With TDS water test meter, All you need to do is to put it in the water and test.(The water quality tester does not test for biological contaminants.)

Extremely Handy Device To Have Around

Even though no water TDS meter can replicate the accuracy of an expensive laboratory instrument, it is ideal for getting a close estimate. Whenever it becomes to water testing, it is an extremely handy device to have around the house.

Please believe us

At DUMSAMKER, we believe in our products. You can always count on our team, who are single-mindedly devoted to improving the quality of your water.

Looking for specific info?

Customer reviews

4.4 out of 5 stars
4.4 out of 5
6,061 global ratings

Customers say

Customers like the value, ease of use, performance, and instructions of the lab supply. For example, they mention it's well worth the price, works well, and provides a quick readout. That said, some complain about the battery, temperature, and documentation.

AI-generated from the text of customer reviews

200 customers mention172 positive28 negative

Customers like the performance of the water hardness tester. They say it works very well, produces consistent results, and is easy to use. Some customers mention the instructions are vague. Overall, customers find the product useful and invaluable when checking RO system performance.

"...I'm gonna say this little gauge is working very well. Worth every penny...." Read more

"...it arrived quickly, packaged well, it was not damaged, and worked right out of the box." Read more

"It works, does what it supposed to do." Read more

"...Easy to read with a green backlight, results are very repeatable, can’t verify accuracy since I have nothing to measure it against." Read more

181 customers mention161 positive20 negative

Customers find the product very easy to use and read. They appreciate the clear and readable instructions and the big, easy-to-read numbers. They also say the product is straight forward, giving a quick readout. Customers also mention that the digital display is easy to read and produces repeatable results. Overall, customers are satisfied with the ease of use and durability of the product.

"Easy to read and easy to use" Read more

"Overall, this appears to be a solid TDS reader. It is lightweight, easy to read, and the background colors are incredibly helpful..." Read more

"...Always aware of the quality of water I’m drinking. Easy to use." Read more

"...It very quickly and efficiently reads the condition of the water and gives you an excellent understanding of how good - or bad - the water is in..." Read more

79 customers mention76 positive3 negative

Customers find the meter well worth the price, saying it's a great buy for quantity and accurate readings. They also mention it'll easily worth the piece of mind to know what you're drinking.

"...I'm gonna say this little gauge is working very well. Worth every penny...." Read more

"I have no way to determine accuracy, but seems to work and the price is right!..." Read more

"...Five stars for cost effectiveness. Please check against a commercial TDS/EC standard if you need good accuracy...." Read more

"This unit works great and you cant beat the price!!! Same exact unit that the pros use.." Read more

143 customers mention92 positive51 negative

Customers are mixed about the accuracy of the product. Some mention it's easy to use and provides accurate readings for testing your water. However, others say that it lacks consistency in the readings, and starts giving false readings.

"Testing my tap water was a snap." Read more

"...Mine was only off by 1uS. Not as accurate on the high side. It was off by almost 50 at 300uS. This was versus a really expensive calibrated meter...." Read more

"...Everyone with well water should own one of these. It’s good to be testing the water now and then a few are on a well." Read more

"Nice and unexpected leather storage sleeve. Measuring is easy and accurate." Read more

84 customers mention46 positive38 negative

Customers have mixed opinions about the quality of the water meter. Some find it very reliable and good quality, while others say it's cheap and defective. Some customers also mention that the meter is easy to use and solid. However, some customers report issues with the sensitivity and accuracy.

"I like thar it arrived quickly, packaged well, it was not damaged, and worked right out of the box." Read more

"...included with ZeroWater filters is wildly inaccurate & obviously poorly made...." Read more

"I love this product so much. I bought one as a gift. Always aware of the quality of water I’m drinking. Easy to use." Read more

"I tested the sink water, it was bad, it turned red. Use it on my brita filter water it was green...." Read more

24 customers mention16 positive8 negative

Customers are mixed about the documentation. Some mention that it's a powerful tool to inform you about your drinking waters, with a very informative brochure. However, others say that there's scant information on the page listing as to its use and that it doesn't come with any instructions on how to read the numbers or what they mean.

"...This thing works and is perfect for a nerd like me. Might start carrying it in a holster to test water wherever I go." Read more

"...primary issue why there is not a 5-star rating is the lack of information on the readings...." Read more

"...reads the condition of the water and gives you an excellent understanding of how good - or bad - the water is in various locations around the country!" Read more

"...The readings were enlightening and correct." Read more

30 customers mention4 positive26 negative

Customers are dissatisfied with the battery of the TDS meter. They say it's not replaceable, and there's no reasonable way to replace it. Some say the battery is soldered in place and hard to find a replacement. Some customers also mention that the battery lasted about 2 weeks and that the reader is shot.

"...I am disappointed that the battery can’t be replaced but there may be a reason for that - calibration??I think this product will be fine...." Read more

"...I know that you cannot change the battery but since you get it for personal use (most likely, it is a 14$ pan sized) why would you ever get to a..." Read more

"...You can not change the battery without breaking it. I really dislike that about the reader. Now I have to keep looking for a new reader." Read more

"...Mine fell into water and now battery and reader is shot. Don’t buy this unless you don’t mind that it is not accurate." Read more

18 customers mention3 positive15 negative

Customers are dissatisfied with the temperature function of the lab supply. They say it's inaccurate, takes forever to read the temperature, and fluctuates with temperature. They also mention that the measurements vary widely with temperature and that the meter is slow.

"...But the temperature function seems not so accurate. I put ice water and regular tap water into separate glasses, but the result is similar...." Read more

"It worked fine, the temperature was off by 4°f, on the low side so my fish would be baking to death!!" Read more

"...It takes a very long time to read temperature. It measures TDS well at least which is the main function." Read more

"...But the temp function is not even in the ballpark. Consistently more than 15 degrees F off, sometime more." Read more

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Top reviews from the United States

Jake Bigelow
5.0 out of 5 stars Works as you’d expect
Reviewed in the United States on April 11, 2024
Verified Purchase
Easy to read and easy to use
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Helen Crow
5.0 out of 5 stars Super easy to use.
Reviewed in the United States on May 3, 2024
Verified Purchase
Testing my tap water was a snap.
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Jared P.
4.0 out of 5 stars Mostly accurate. Easy to use and nice features.
Reviewed in the United States on February 19, 2024
Verified Purchase
I work in a field where we work on reverse osmosis machines and was wanting something just for just a quick and dirty check not for official calibrations or maintenance. This is actually decently accurate on the low end 0-20uS/ppm. Mine was only off by 1uS. Not as accurate on the high side. It was off by almost 50 at 300uS. This was versus a really expensive calibrated meter. I havent had a chance to use calibration solution to check it yet. I will probably try 10 and 100uS and see how it does.
5 people found this helpful
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Joe
5.0 out of 5 stars The Good, the Bad, & the Ugly!
Reviewed in the United States on January 29, 2024
Verified Purchase
Wow, first I tested a brand new bottle of drinking water from the store. It only read 4 parts per million of contaminates, very good 👍. Then I tested the water coming outta the faucet in my travel trailer I live in, in an county park. I had also just replaced the inline filter that morning, and it still failed miserably as expected. It read in at 567ppm of contaminates, well into the red zone. Any reading over 500 can make you extremely ill. I'm gonna say this little gauge is working very well. Worth every penny.
4 people found this helpful
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grtscot60
5.0 out of 5 stars It works !
Reviewed in the United States on April 28, 2024
Verified Purchase
I like thar it arrived quickly, packaged well, it was not damaged, and worked right out of the box.
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Bkborden
3.0 out of 5 stars Good TDS reader for my needs but my values were not replicable
Reviewed in the United States on May 26, 2019
Verified Purchase
Overall, this appears to be a solid TDS reader. It is lightweight, easy to read, and the background colors are incredibly helpful (green for safe, red for nope don't drink it).

The reason for my 3/5 star rating has to do with the accuracy. I tested the tester (say that 10 times fast) on water from my sink in a clean cup. After noting the first value, I ran several consecutive trials. The initial value wasn't replicable & often varied in a range between 1 to 20 from the initial value. Over the course of several days I tested it on a number of differing water sources, again with varying results. The values did stay within a certain range, however.

Initially I had wanted to return it, but then ultimately realized that despite the lack of consistency in the readings it is good enough for what I am using it for, which is testing water from my ZeroWater filter to determine when to change the filter. This is because the TDS reader included with ZeroWater filters is wildly inaccurate & obviously poorly made. I found that when relying on the ZeroWater TDS reader to know when to change filters, my water starts tasting like fish... But when using this water tester & taking the average of 3 trials, I am able to change the filter before I start tasting that gross fishy taste.

Overall, for a consumer's average use that doesn't require extreme accuracy, I would recommend this product.

Please note that your mileage may vary & my own tester's variability could be attributed to a variety of things including a manufacturing defect, overheating due to shipping, or user error.

Thanks for reading & I hope my review helps you! :)
17 people found this helpful
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patti
5.0 out of 5 stars Be confident in the water you’re drinking
Reviewed in the United States on May 7, 2024
Verified Purchase
I love this product so much. I bought one as a gift. Always aware of the quality of water I’m drinking. Easy to use.
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John
5.0 out of 5 stars It works
Reviewed in the United States on May 6, 2024
Verified Purchase
It works, does what it supposed to do.
One person found this helpful
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