TDS Meter, Digital Water Testing Kits with 0-9990 PPM Measurement Range,Hand Held Electronic Water Tester for Drinking Water Quality, Tap, Well, Swimming Pool, Aquarium, RO/DI System

This is not my first TDS meter. I purify the water for my house plants with a reverse osmosis/deionizer filter, and I use a TDS meter to monitor the output. Several times I have purchased mixed media resin for my DI filter that was supposed to be color changing, only to find that, although it did clean the water, it did not change color. As a result, the only way to tell when to replace the media is to monitor the output continuously. Purified water is not good for plants because it contains no nutrition. It is necessary to add a certain amount of fertilizer, or your plants will not grow. As it happens, I have several carnivorous plants in my collection which resent any solution stronger than rainwater. In order to control the mineral content in the water I use for these fussy plants, I decided to get a spare TDS meter for my plant room. Since this meter was low in price, I ordered it. I have been using it for over a month and find it dependable and useful. By the way, the other, older meter, that I have been using for about seven years, was made by Etekcity. I have seen no real difference between the two and would equally recommend both.

Works perfectly

Works fine

As a guy who's into home brewing and aquariums, I know how important it is to have accurate readings of total dissolved solids (TDS) in water. That's why I picked up the Portable TDS Pen, and I have to say, I'm really impressed with it. One of the things I love about this pen is how fast and accurate it is. You simply turn it on, dip it into the water about an inch deep, and the large digital display gives you an accurate TDS reading. This is great for anyone who wants to know exactly when to change their water filters or for anyone who wants to test the water quality of their drinking water, swimming pools, aquariums, and hydroponics. The automatic calibration feature is also a huge plus. There's no need for any adjustment screwdrivers, and the pen calibrates in just 3-5 seconds. Plus, the compact and portable design of the pen makes it easy to carry in your pocket or bag, which is great for someone like me who's always on the go. Another thing I appreciate about the Portable TDS Pen is the quality warranty. With a warranty of more than six months, I know that I can rely on this pen for accurate readings for a long time to come. And if I ever have any issues with the pen, I can always count on the enthusiastic customer service team to help me out. Overall, I highly recommend the Portable TDS Pen for anyone who wants a fast, accurate, and portable solution for measuring total dissolved solids in water. It's a great investment for anyone who's into home brewing, aquariums, hydroponics, or anyone who wants to make sure their water is safe and clean.

Works great

You work fine, it did what it supposed to do

This has been such a valuable tool when crafting my water for pour over coffee. I use Third Wave Water packets mixed with distilled water, and am able to determine when I've hit the ratio I need quickly and easily!

Do NOT buy this product completely a junk, stopped working after couple months.

Bought this TDS meter to monitor the quality of my RO water that I use for my aquarium. It's very easy to use, has a quality feel to it and functions reliably well. Great value for money!

This water tester is one of the most useful items in our campervan. We are currently in Spain we test the water each time we want to fill up our tank. If it's over 300 ppm we don't fill up. According to WHO any reading above 300ppm is unacceptable to drink. More than once we have not filled up due to the water quality being 700-800ppm. For a piece of equipment under £10 you can't go wrong, that keeps you well, is well worth it.

Does the job but unsure if its that accurate. Both my tap water and filtered water basically read the same which shouldnt be the case

Easy to use. Good item

Didn't work well after being used twice. I would nothaveanithef. Did not work well