$514.2

Online Conductivity Controller Meter Temp TDS Tester with 1-3 Points Calibration

$269.22

Relay Output Ph Ec Conductivity Ec Meter Controller with Sensor High Sensitivity

$47.95

Milwaukee T75 Waterproof Low Range Total Dissolved Solids Pen (TDS)

$107.69

Apera Instruments 201T-F All-in-one pH Electrode, ATC, BNC/RCA Connector, Pol...

$172.43

Mettler Toledo Thornton M300 Titanium Conductivity Sensor, 240-215

$50

GeneMate PH-11 Bioexpress Benchtop pH mV Temperature Meter

$197

VWR Symphony SB20 Portable pH Meter w/ new electrode 8135BN combination

$274.16

1pcs NEW Sensor PH-5022+5 meter line of JUMO online water quality detector

$270.98

THERMO SCIENTIFIC 54X409903 Eutech pH 6+ pH/ORP Meter 6V DC Input

$570

1pcs Mettler Toledo HF405-60-P-PA-K19/120/3m 59904706 PH electrode

$1185

1pcs DMi141-SC 51109530 Electrodes

$180

Eutech EcoTestr TDS High TDS Tester ECOTDSTESTHIGH