DO-5509 Lutron Meter is a portable, pocket size digital dissolved oxygen meter designed for precise measurement of oxygen levels and temperature in water.

Specifications :
- Display : 13 mm {0.5″} LCD, 3 1/2 digits.
- Measurement Range : Dissolved Oxygen -0 to 20.0 mg/L
- Resolution : 0.1 mg/L
- Accuracy : -+ 0.4 mg/L.
- Sensor Temp. Conpensation : Automatic from 0 to 40C
- Panel adj. knob : ZERO knob, CAL knob.
- Battery : 006P DC 9V battery
- Power Consumption : Approx. DC 3.5 RH
- Operating temp : 0 to 50 C { 32 to 122 }
- Operating Humidity : Less than 80% RH
- Dimension :
- Main Instrument : 131 x 70 x 25 mm { 5.2 x 2.8 x 1.0 inch }
- Oxygen probe : 190 x 28 x { 7.5″ x 1.1″ }
- Probe cable lenght : 4 meter.
- Weight : 390 g {0.86 LB}