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$304.00
SE
LEICI pH meter PHB-4 0.1pH resolution Manual warming
-1400~1400mV(0.00~14.00)pH
0.1 level, (-1400~1400) mV, (0.00~14.00) pH, manual warming, automatic identification of GB 4.00pH, 6.86pH, 9.18pH three pH standard buffer solutions, support custom pH buffer solution
$419.00
SE
LEICI PHB-5 Portable pH Meter PH/mV/Temperature 0.01 Class
-1999~1999mV(-2.00~18.00)pH
Measure PH, mV, temperature, 0.01 level, high definition liquid crystal display, button operation, support manual/automatic temperature compensation, automatic identification of 3 kinds of buffer solution, standard three composite pH electrode, electrode hanger, silicone protective cover, wristband, calibrated buffer powder
If you don't know how to choose "PH Meter", please consult customer service.