Lutron Dissolved Oxygen Meter, DO-5509 Taiwan

Lutron Dissolved Oxygen Meter (DO Meter), Model: DO-5509, Made in Taiwan
Measurement & Range: Dissolved Oxygen – 0 to 20.0 mg/L.
Display: 13 mm ( 0.5″ ) LCD, 3 1/2 digits.
Accuracy: ± 0.4 mg/L. (after calibration within 23± 5 ℃)
Resolution: 0.1 mg/L
Power Supply: 006P DC 9V battery (Heavy duty type).
Sensor Temp. Compensation: Automatic from 0 to 40℃.
Panel adj. knob: ZERO knob, CAL knob.
Battery: 006P DC 9V battery ( heavy duty ).
Power Consumption Approx. DC 3.5 mA.
Operating Temp. 0 ℃ to 50 ℃(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 mm x 28 mm Dia. ( 7.5″ x 1.1″ Dia.)
Weight: 390 g ( 0.86 LB ) – with the probe.
Brand: Lutron
Origin: Taiwan
Accessories

Included Oxygen probe( OXPB-09N )…………………1 PC.
Operation manual……………………………………….. 1 PC.
Spare Probe head with Diaphragm set, OXHD-04……2 PCs.
Probe-filling Electrolyte, OXEL-03……………………… 1 PC.
Optional Accessories

Oxygen probe…………………………………… OXPB-09N
Spare Probe head with Diaphragm set ……………OXHD-04
Probe-filling Electrolyte………………………. OXEL-03
Hard carrying case………………………………CA-06