Compact and affordable, the DO 200A provides quick, accurate dissolved oxygen and temperature measurements simultaneously.
The screw-on cap membranes reduce stirring dependence, offer fast response times, and are easy to replace.
The weighted probe assembly sinks quickly and is protected from impact. Dissolved oxygen measurements are displayed in either % oxygen saturation or ppm (mg/L).
Other features include a waterproof housing which meets IP-67 specifications, connecter caps, auto shut off function (after 30 minutes of non-use), low battery indicator, 50 data set reviewable memory, push-button calibration, and compensation for temperature, pressure, and salinity for accurate measurements in varying conditions. Probe and cable assemblies sold separately from the meter. Choose from two cable lengths.

Range: 0% to 200% air saturation; 0 to 20 ppm; -6°C to 46°C.
Resolution: 0.1% air saturation; 0.01 ppm; 0.1°C.
Accuracy: ±2% of the reading or ±2% air saturation, whichever is greater; ±2% of the reading or ±0.2 ppm, whichever is greater; ±0.3°C ±1 digit.
Salinity compensation: 0 to 40 ppt (manually entered).
Pressure compensation: 600 to 1,100 milibars (manually entered).
Temperature compensation: Auto. Operating range: Temperature, 0°C to 50°C; Relative humidity, up to 95%.
Power: 9V alkaline battery.
Dimensions: 9.5”L x 3.4”W x 2.8”D.