Waterproof Dissolved Oxygen Meter Pen

Measures dissolved oxygen to determine water quality in environmental testing, labs, industrial and municipal wastewater, aquariums and fish hatcheries. Designed for simple one-hand operation with automatic temperature compensation and calibration to air. The polarographic probe has a built in temperature sensor and easy-to-replace pop-off probe heads. Simultaneously displays dissolved oxygen and temperature readings. Also holds readings and recalls minimum and maximum. IP65 waterproof. Comes ready to use in a soft carrying case with belt loop, two spare probe heads, electrolyte and 4 AAA batteries. EPA Equivalency Method: 360.1 Dimensions: 7¾" × 1½" × 1½" (197 × 38 × 38 mm) Weight: 4.1 oz (116 g) Specifications Unit of Measure: Range: Resolution: Accuracy: DO: 0 to 20.0 mg/L 0.1 mg/L ±0.4 mg/L Oxygen % in Air: 0 to 100% O2 0.1% O2 ±0.7% O2 Temperature ºF: 32 to 122ºF 0.1ºF ±1.5ºF Temperature ºC: 0 to 50ºC 0.1ºC ±0.8ºC Downloads Instruction Manual Product Brochure Comparison Chart Dissolved Oxygen Chart Videos