Polarographic Oxygen electrode Atomatic Temperature Compensation Screw on Membrane Caps Quick response Dissolved Oxygen Probe SpecificationMeasurement Range (mg/L): 0.00 - 19.99, 0.0-90.0Accuracy: +/- 1.5% FSTemperature Range: 5-45 °cDimensions: Ø12 x 165 mm Dissolved oxygen electrode