$1289

1PC USED Thermo Scientific Orion Star A214 pH/ISE Meter By DHL or UPS/xjk

$203.89

Pen Type Pocket Conductivity Tester Temp Meter Measurment with Accuracy 1% F.S.

$1904.33

METTLER-TOLEDO SEVENEXCELLENCE MULTIPARAMETER BENCHTOP PH METER W/ RS-P25 P25 La

$684.41

Acidimeter Acid PH mV Meter Water Quality Tester with Accuracy 0.002pH GPS

$760

LowTariff ENDRESS+HAUSER CLM223-CD0005 Conductivity transmitter

$161.76

Digital Lab pH Meter Portable pH mV Temperature Tester with 0---14.00pH ±1600 mV

$710.89

Acidimeter Acid PH mV Meter Water Quality Tester with Accuracy 0.002pH GPS

$58.3

Online Conductivity Tester Cond Meter Water Quality Monitor with Adapter

$999.73

Benchtop Water Quality Monitor pH TDS Conductivity Meter Dissolved Oxygen Tester

$134.1

Portable Pen Type Digital PH Meter CT-6020A with PH Electrode GOOD

$133.63

220V Acidity Meter Water Quality PH Meter Detector PHS-25 With E-201-C Electrode

$165.19

TDS Tester Water Quality Meter Range 0.05 to 10.00ppt for Wastewater Aquaculture