$980

Bromide Ion Meter Digital Br Ion Meter with Standard Liquid 0.4~81000ppm

$1066.36

Multi parameter Water Quality Analyzer with Standard Fluid ±1999.9mV PH Electrde

$1020

1pcs 238633-1213 EasyFerm Plus PHI S8 120 pH electrode

$79.19

6-in-1 Multifunction PH/EC/TDS/SALT/Temp Water Quality Tester Wifi APP Control

$364

1pcs Z08310=A=0000 Conductivity Electrode&fxf

$980

Bromide Ion Meter with Standard Fluides 0.4~81000ppm 500 Groups Data ±0.5% F.S.

$110.37

Portable Water Quality Monitor PH Meter mV Tester Temp Display 0-14.00pH Range

$140.88

Online pH Meter Digital Industrial pH Controller Tester Water Auqlity Monitor

$494.04

Industrial Online Conductivity Controller Meter TDS Tester with 4~20mA Output

$54.53

CM-230 Conductivity Tester Industrial Online Monitor Automatic Ranging Zeroing

$654.81

Conductivity Dissolved Oxygen Tester Salinity Resistivity Water Quality Meter

$6.14

Portable Water Purity Test Tool TDS Water Test Pen Water Quality Analyzer pen