$120

KURITA TESTO-C DIGITAL HAND-HOLD CONDUCTIVITY METER WITH PROBE FOR KURITA MAKE

$653.95

Milwaukee MC745 PRO Conductivity (EC) Controller & Dual Pump Kit for USA 110V

$80

Oakton Acorn Series pH 5 Meter Kit pH 5/6 & Ion 5/6 Con 6/TDS 6 Hand Held

$50

Hach 1720C Keyboard 44110-00 (2pack) NEW NEVER OPENED

$450

1 PCS EXTECH 381285 oscilloscope

$130

LOVIBOND SD-50 HAND-HOLD PH WATER TESTING TENTOMETE FOR LOVIBOND MAKE 0221/37541

$408.93

One New HACH RC1R5N PH Electrode

$230

WTW Inolab pH 740 Meter

$72.15

CT-6322 3-in-1 PH Meter Conductivity Meter f/ PH + Conductivity/ Temperature tp1

$640.14

Water Quality Analyzer Portable Dissolved Oxygen Meter pH mV Temp Tester Meter

$320

HANNA instruments HI 2211 pH ORP meter with probeHI1131 PN HI2211

$1080

Multi-parameter Water Quality Analyzer with Standard Solution -2.000~20.000pH