$272.99

Acidity Meter PHS-25/3C Bench-top Digital Display Acidity Meter Laboratory PH

$499.08

Conductivity Meter Tester Temp TDS Tester with TDS 0 ~ 1000 ppm, max. 20.00 ppt

$139

Balsbaugh Conductivity Cell , 910-1-OFG

$459.95

Milwaukee MW150 pH/Temperature Laboratory Bench Meter, US 110V

$81.88

CMS PH102 / PH102 (USED)

$76.96

Apera Instruments 602 Flexible Electrode Holder

$1009.01

Multi-parameter Water Quality Analyzer with Standard Solution for PH ORP TDS

$1250

1pcs Mettler Toledo DGi116-SC Combined Glass pH Sensor Electrode

$150

Drew Marine 0173054 Conductivity Meter

$100

CHEMETRICS A-7320 LOW RANGE COD PHOTOMETER FOR 0 TO 150 PPM RANGE FOR CHEMETRIC

$17.57

Black PH Electrode Probe BNC Connector 1.1m Line For Laboratory A3A6

$582.98

Hanna Instruments HI8733 Handheld Conductivity Meter With Test Lead & Carry Case