Your cart is empty.
Your cart is empty.Brennen R.
Reviewed in the United States on September 29, 2024
This thing is awesome the backlight. Ing even changes colors whenever the p h is dropped between acetic base or alkaline.
Kim
Reviewed in the United States on August 29, 2024
Works great--goes with our Zero Water filters!
Joni Tyler
Reviewed in the United States on February 23, 2023
I could have used more instruction on how to interpret the readings.
Leslee
Reviewed in the United States on December 6, 2023
I am giving 3 stars. The ph metor they gave instructions ans solution to calibrate it. The tds says it needs calibrating but no instructions. Instructions for both would be great. I need to a book to know how to use or what the numbers mean. I guess if your a chemist you would know.
Yaweno
Reviewed in the United States on December 4, 2023
I first checked the TDS value of my tap water and it gave me a 24ppm. I had checked the water with a TDS meter my friend lent me a few months ago and it was 25ppm. I take this to mean that the values from this TDS meter is pretty good and my tap water is pretty good too. My EC at 22.1C was 52, which I think is pretty good too. My understanding is that you are suppose to compare EC values at 25C, but that's for the experts to do. I just want an idea of the quality of my water. I tested the PH meter with vinegar and my PH paper strips and the PH meter seems to be pretty accurate as well. There is a calibration process for the PH meter, but for now I'm comfortable with the values I'm getting. This is an easy to use and helpful test kit for a very reasonable price point.
Our Eclectic Life
Reviewed in the United States on December 13, 2023
Make sure you have distilled water when you use this or any other pH meter. Calibration is recommended before use and the probe needs to be rinsed with distilled water after use. The pH meter should be calibrated prior to use. As a test, I read the pH of a water sample before calibrating the meter. It read 7.22. After calibration, it read 7.10. Recalibration is not required under most circumstances, but the instruction pamphlet does tell you to mark the buffer solutions that you made so you can recalibrate later. Unfortunately, there is no mention of shelf life or storage conditions for your buffers. The powdered chemicals to make the buffers are included, but you're going to need 1 to 3 cups of distilled water to dissolve them in. After calibration, you're good to go and just have to follow the use and maintenance instructions. The pH meter takes a little while for the reading to stabilize. That's pretty standard for devices that test water. The second meter in this kit is for TDS (Total Dissolved Solids), EC (Electrical Conductivity), and temperature in °C and °F. The temperature function is probably the most useful feature of this probe. This probe is low maintenance, just requiring you to clean the electrode after use and replace the cap. As for cleaning the electrode, I just fold up a paper towel into a little point and twirl it around each electrode rod. If I were putting the sensor in something dirtier than tap water, I'd also rinse it off before drying it. Technically, I should probably be washing the electrodes with distilled or DI water after each use (that's from my previous experience with meters like this, not that the instructions say to do so), but for everyday noncommercial household purposes, I'm not going to be bothering to do that. Temperature is correct. TDS is at least in the correct ballpark although I have no way of saying exactly how accurate it is. I'm not sure about EC. The temperature reading changes continually, but the TDS reading will stay on the meter even after you remove it from the liquid which can make reading your result much easier. Overall, I'm happy with the ease of use and quality of these meters. Readings are accurate according to litmus paper and testing of the buffer solutions after calibration. I ordered this set because I'm getting into hydroponics and aquarium set-up and you really should know pH for both of those.
J. Chandler
Reviewed in the United States on October 7, 2023
As someone involved in the sciences for decades, it always amazes me about how technology has advanced. This pH meter's value price and functionality are very good! Combined with the Total Dissolved Solids, Electrical Conductivity, and Water Temperature meter make this kit great!One note up front: I've seen UNFAIR negative reviews talking about, "why didn't it say I needed deionized water" or, "it should come pre-calibrated". To those people, I say, "UNFAIR reviews! Leave these instruments to people who have a BASIC understanding of scientific equipment." A pH meter is highly sophisticated and, after shipment or after extended non-use, MUST be (re)calibrated!Pro tip: If you don't have deionized water, you can use distilled or reverse osmosis water. Yes, deionized water is the best; however, if you are not doing ultrasensitive lab work (where you should be using laboratory grade equipment anyway), distilled or RO water should suffice.Pro tip #2: If you plan to use this unit a lot, I would suggest also buying multiple sets of the 3 pH Buffer Solution powder packets designed for pH meter calibration. They are readily available here on Amazon and, will be a lifesaver! (Here is a link to one that I use: www.amazon.com/dp/B0C6D1B46F)Pro tip #3: These meters are DELICATE. Don't try to press them into anything HARD, like dry soil! Instead, get some gloves, so as to not have your skin or anything on it affect the reading, and break up the dry soil, mulch, etc. into a fine powder. Then, *gently* press the unit into the powder.Total Dissolved Solids is another very useful feature. Try it in various tap waters. You'll be very surprised at the variations - especially if you're in an area with hard water.For the features that this kit provides (pH, Total Dissolved Solids, Electrical Conductivity, and Water temperature), you can't beat this kit for price vs. functionality vs. value.A 5-star measuring kit!
kz
Reviewed in the United States on October 1, 2023
I didn’t get any probe with mine. I searched “Ph meters for food” as I wanted to use it for canning, sourdough but this doesn’t look at all like what i need so will be sending it back asap.
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