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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
OHAUS pen style pH testing pen from the United States
OHAUS Ohhaus Conductivity Meter from the United States
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