$755.72

///1PCS TOADKK GST-5731C PH Meter pH Meter Probe, GST 5731C Probe Sensor

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Myron L Company ph conductivity meter Model M6/pH

$215.99

Hach SC100 LXV401.52.00002 General purpose analyzer

$750

LAM PCB 810-7215-1 Power Driver 9 23 4a

$250

VWR SYMPHONY H10P HANDHELD PH METER MODEL:H10P

$1020

1pcs inpro3250/225/PT1000 52002553 pH Electrode

$105.95

Milwaukee EC40 EC/TDS Nutrient Meter for Hydroponics, Agriculture

$43.95

Milwaukee CD610 Total Dissolved Solids High Range for Aquariums

$430.26

Kemotron Conductivity Analyzer Type 3214S | Steris P/N: P15015215F

$240.34

Benchtop Conductivity Meter with Conductivity Solution 0.00μS/cm～100mS/cm

$63

COLE PARMER MICROCOMPUTER PH-VISION MODEL 05669-20 PH METER 607 1N See Pics

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Value Series PH850 Portable Ph Meter with Temperature Probe Only