AOLILONG PHB-5 Pen pH meter

AOLILONG PHB-5 pen pH meter PH Measurement range 0~14.0pH, PH Measurement accuracy +/- 0.1ph, resolution 0.1pH, suitable for laboratory test site, irregular ph value monitoring of industrial and mining production process, water quality assurance of fishing, animal husbandry and agriculture, and supervision of environmental drainage and sewage quality.