Mudder 0.01 high PH type pen Pocket Digital Readout Meter Accuracy With ATC, Large backlit LCD Size, 0.00-14.00 pH Measurement Range Measurement Potable water, water Aquarium Pool ( Red) (Tools & Accessories)
Instructions in English ... After translation difficult, we must have made chemistry studies to calibrate the machine because it is not automatic. I took my paper testers. You will not post this comment is negative because as always ...
