$138.24

HACH 5500sc PO 3/4-LR lower door with hinges and screws, 6464700

$322.05

1pcs BJC E-1312-EC1-M10STJC PH meter probe

$21.89

Radiometer Copenhagen K601 Glass Electrode

$138.99

Screen Aging Thermo Scientific ORION 5-Star pH/Cond/DO Portable Meter W/O Probe

$2300

1pcs E+H CCS51D-AA1A1AD Chlorine Residual Electrode

$291.52

Benchtop PH Meter for Acidity with PH Powders mV Range -1800～1800mv Error ±0.1%

$317.98

Benchtop Conductivity TDS Meter Temperature Tester Water Quality Analyzer

$145.82

Portable Digital Conductivity Meter with Range (0～1999)μs/cm (2.00～199.9)ms/cm

$45.82

CT-3030 Conductivity Meter Conductivity Pen Tester 0-1999us/cm with Box ℃/℉ tp1

$346.74

Digital Conductivity Meter with Conductivity Solution 0.00μS/cm～200mS/cm 1 Point

$30.19

TDS Instrument Conductivity Monitor ot2 CM-230S Online Water Conductivity Meter

$1300

1pcs Mettler Toledo InLab741-ISM 30014094 HP electrode