johnvu713
01/27/2006, 04:45 PM
I just bought a ph meter SMS 122 but the instruction a little confusing. It comes with only one packet of solution(7.01)
In addition, there's a calibration trimmer on the rear but i dont think i need to calibrate this do i?
Can someone help?
In addition, there's a calibration trimmer on the rear but i dont think i need to calibrate this do i?
Can someone help?