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

PH Meter only received . Temperature meter not received .

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

Came with no calibration buffers.

Very good quality

Se veía usado

The PH & EC/PPM meters are worth their weight in GOLD. The meters come in a VERY sturdy box plus detailed separate instructions, the PH meter comes with powders for calibration and the EC meter comes calibrated plus spare batteries for both. I would recommend these, and at a very good price too.

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