Introduction
Congratulations on your purchase of Extech's Heavy Duty Dissolved Oxygen / Temperature
Meter which simultaneously displays Dissolved Oxygen or Oxygen in air, and Temperature.
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Units of measure are mg/l for Dissolved Oxygen, % for Oxygen in air, and C/ F for
temperature. Oxygen is measured with a remote sensor that also contains a thermistor for
measuring temperature. Advanced features include RS 232 PC serial interface, data hold, auto
shut off, and Min/Max/Avg recording.
Meter Description
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LCD Display
POWER ON/OFF key
Data HOLD key
°C/°F selection key
LCD Contrast Adjust
RECORD key
RECALL key
Factor adjust key
Probe head
Sensor body
Sensor plug
Sensor jack
RS-232 output jack
Battery cover (rear)
Altitude compensation key
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Cal key
Zero key
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calibration key
% Salt key
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407510
V7.0 10/06
EXTECH [ EXTECH INSTRUMENTS CORPORATION. ]
