SPECIFICATIONS
O2 Range	0.00 to 45.00 mg/l (ppm)
% Saturation O2 Range	0.0 to 300%
Temp Range	-5.0 to 55.0°C / 23.0 to 131.0°F
O2 Resolution	0.01 mg/l (ppm)
% Saturation O2 Resolution	0.1%
Temp Resolution	0.1°C / 0.1°F
O2 Accuracy	±1.5 Full Scale
% Saturation O2 Accuracy	±1.5 Full Scale
Temp Accuracy	±0.4°C / ±0.8°F
Logging	50 records, LOG on demand or auto-logging
DO Calibration	automatic, 1 or 2 point at 0% (MA9070) and 100% (in air)
Temperature Compensation	0.0 to 50.0°C / 32.0 to 122.0°F
Altitude Compensation	0 to 4000 m; resolution 100 m
Salinity Compensation	0 to 40 g/L; resolution 1 g/L
DO Probe	MA840/2 with DIN connector (included)
Temperature Probe	Included in DO probe
Calibration	2 points (0.0°C and 50.0°C / 32.0 to 122.0°F)
Log on demand	up to 50 records
PC Interface	RS232 / USB Opto-isolated
Environment	0 to 50°C / 32 to 122°F; max RH 95%
Power supply	12 VDC power adapter (included)
Dimensions	230 x 160 x 95 mm
Weight	0.9 kg

Polarographic D.O. Probe
Polarographic D.O. probe with 2 meters cable

Rear Connector Panel layout
Communication to the PC is done via opto-isolated USB and RS232 ports..