VIVOSUN pH and TDS Meter Combo, 0.01ph High Accuracy Pen Type pH Meter ± 2% Readout Accuracy 3-in-1 TDS EC Temperature Meter for Hydroponics, Household Drinking, and Aquarium, UL Certified

its as expected

Excellent

This is not Vivo brand it’s very bad brand and it comes without the calibration

Came with no calibration buffers.

PH Meter only received . Temperature meter not received .

Very good quality

Se veía usado

TDS meter are working fine but for the PH meter I personally don’t arrive to fully calibrate it as all the time I do the PH 7 then PH 4 and when it’s arrive to do PH 9 it’s return to PH 7 so impossible to complete the calibration.

Muy buenos

I received these well within the time frame for delivery. They were well packaged and with full instructions. I used the instructions to calibrate the ph meter, and then tested the ph meter against litmus paper. I found that the meter worked well and showed the correct ph reading, although with the ability to tell within .01 accuracy. For the price, I would say these meters are an excellent value and work well. Highly recommend

If you’re looking for an affordable way to check pH, TDS, and EC without spending a lot of money, this is a great option. It gives you several useful readings in one device and is much more convenient than buying separate meters. The readings have been consistent for what I need, and the auto-calibration and temperature compensation make it easy to get started without a lot of messing around. The display is easy to read, and having the hold function is a nice bonus. For the price, I really don’t think you need to spend more unless you have a specific reason to buy a higher-end professional meter. This one gives you the important functions at a fraction of the cost. Definitely one of those purchases where you get a lot for your money.