$200.00
SE
YueFeng PHS-3B LABOratory Acidity Meter 0~14.0 pH
pH, mV, temperature0~14.0pH-1999~1999mV

$105.00
SE
YUE FENG PHB-3 pen acidity meter, automatically calibrates IP57 waterproof
0~14.0pH
With automatic correction function, IP57 waterproof rating, Measurement accuracy up to +/- 0.1pH, can replace the electrode and support automatic shutdown, suitable for a variety of environment detection.

If you don't know how to choose "PH Meter", please consult customer service.