$803.00
SE
LEICI PHBJ-261L Portable pH Meter Potential pH ORP Temperature 0.001 Grade
pH, mV, temperature-2000.00~2000.00mV-2.000~20.000pH

$94.00
SE
YUEPING PHS-3CB PH electrode with PHS-3CB acidity meter -2.00~19.99pH
PH Measurement range -2.00~19.99pH, PH Measurement accuracy +/- 0.01pH, resolution 0.01pH, Temperature Measurement range 0.0~80.0 ℃, Stability (zero drift )( +/- 0.01pH +/- 1 word)/3h

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