35
SPECIFICATIONS
These specifications represent typical performance and are subject to
change without notice. For the latest product specification information,
please visit YSI’s website at ysi.com or contact YSI Tech Support.
Parameter Range Resolution Accuracy
Temperature -5 to 55°C* 0.1°C ± 0.3°C
23 to 113 °F 0.1 °F ± 0.6 ºF
Dissolved
Oxygen
0 to 200% air
saturation
1% or 0.1%, user
selectable
± 2% of the reading
or ± 2% air saturation,
whichever is greater
200 to 500%
air saturation
1% or 0.1%, user
selectable
± 6% of the reading
0 to 20 mg/L 0.1 or 0.01 mg/L,
user selectable
± 2% of the reading
or ± 0.2 mg/L,
whichever is greater
20 to 50
mg/L
0.1 or 0.01 mg/L,
user selectable
± 6% of the reading
Barometer 400.0
to 999.9
mmHg**
0.1 mmHg ± 5 mmHg within
5 °C of calibration
temperature***
* Automatic Dissolved Oxygen Temperature Compensation Range is
-5 to 45 ºC
**Available barometer units include: mmHg, inHg, mbars, psi, or KPa
***For operating temperatures below 10 °C or above 40 °C, the
barometer must be recalibrated to maintain accuracy specification.
ACCESSORIES / PART NUMBERS
Part Number Description
6050020 Pro20 Instrument
607120-1* Pro20i Instrument with integral (i.e. built-in) 1-meter
cable; includes temperature and a port for Dissolved
Oxygen
607120-4* Pro20i Instrument with integral (i.e. built-in) 4-meter
cable; includes temperature and a port for Dissolved
Oxygen
607120-10* Pro20i Instrument with integral (i.e. built-in) 10-meter
cable; includes temperature and a port for Dissolved
Oxygen
*All cables include a temperature sensor. Dissolved Oxygen sensors
are sold separately.
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