Review on Blue Upgrade LED Water Quality Test Meter - Pancellent TDS PH EC Temperature 4 in 1 Kit by Mark Ponnusamy

Here's my update for everyone: After studying China a bit, everything is metric and Celsius so we just have to translate. So yes, 25 meant 25°C, so (25*9)/5+32=77°F. However, it said that it automatically compensates for temperature. NO. My well water is glacier temp when it comes out and the readings from this device are the same regardless of the temperature. So I found out that I need to bring the water to room temperature. So I top it up in the morning or the night before and leave it on for most of the day. Now the problem is that all the sediment is at the bottom of the glass so I have a glass stir stick that I used to stir the water. I've experimented a lot and found that I can't use plastic, metal or any container other than glass as the readings will vary. So stir the water for about 30 seconds (yes, you can shake it like salad dressing) and then place the counter in a glass that's short like a juice glass and make sure it goes in about 1.25 inches Numbers jump and settle down after about 15 seconds. I ran a few measurements to find out where the numbers are pretty close to those of the eco labs. In general, all counters are fairly accurate. When you try to measure hardness, most of the sediment settles to the bottom, so I found it easier to run the water at around 77°F. I used a meat thermometer to set the tap water to the correct temperature. But well water is just COLD all year round! So we learned that our flirting doesn't do much good because well water and tap water have almost the same hardness. As for pH, just make sure the water is room temperature and you'll be fine, no need to shake. Obviously the person who wrote the ad didn't speak to the person who wrote the instructions! It seemed so easy, and then I get instructions. I'm exceptionally good at English, but obviously it's changed over the years, so I have to ask what does "vacuum with a paper filter" mean? It is also important that the water does not rise above the dip line. I can't find a line on any gauge, where is it? The instructions say 2 inches for the TDS meter, I can assume the same for the PH meter. Well, I'm not suggesting anything if it's that important? Is it really that difficult to put a line on a device when it's so critical? There the temperature 25.25 is indicated, what? Water starts to freeze at 32F so how do I check 25 and how do I know if it's 25 or lower? Are you saying I can only test frozen water? The Revain ad said that testing automatically takes temperature into account, so I don't see why you don't tell me the temperature if it's so important. The display has a dark gray background with black fonts ranging in size from 4 to 16 points and there is no light 💡 for reading. Needless to say I haven't used them yet because the instructions are terrible. Once I do that I'll post the results.