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Speedtech Instruments from the United States
NK Weather Meter/Electronic Weather Station/Five Parameter Weather Meter/KESTREL, USA
Aquaculture detection instrument
OHAUS Ohhaus Instrument from the United States
Jenco Instruments from the United States
Instrument and meter
OHAUS portable pH meter from the United States
OHAUS portable dissolved oxygen analyzer from the United States
American JENCO electrode
JENCO3 composite electrode from the United States
JENCO pen type conductivity tester from the United States
OHAUS pen style pH testing pen from the United States
JENCO conductivity and resistivity control/transmitter from the United States
OHAUS Ohhaus Conductivity Meter from the United States
American JENCO conductivity electrode
JENCO portable dissolved oxygen temperature tester from the United States
JENCOPH electrode from the United States
JENCO desktop conductivity/TDS/salinity/temperature measuring instrument from the United States
JENCO pH electrode from the United States
JENCO pen type salinity tester from the United States
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