$3301.00
SE
HANNA HI98198 Portable (Fluorescence Method) Dissolved Oxygen DO-Saturated Dissolved Oxygen Meter
Dissolved oxygen DO range: 0.00 to 50.00 mg/L (ppm), saturated dissolved oxygen: 0.0 to 500.0%, dissolved oxygen DO resolution: 0.01 mg/L (ppm), IP68 international waterproof grade, completely sealed waterproof and dustproof.

$1663.00
SE
HANNA HI6221 Benchtop acidity meter, a new generation of desktop pH/ORP meter
-2.0 to 20.0 pH;-2.00 to 20.00;-2.000 to 20.000pH±2000mV
Measurement range -pH-2.0 to 20.0 pH; -2.00 to 20.00; -2.000 to 20.000 pH, 7-inch capacitive touchscreen, equipped with an electrode holder with a flexible arm, the holder can be quickly installed.

If you don't know how to choose "STIP-scan", please consult customer service.