dissolved oxygen meter Dissolved Oxygen Meters - DO Meter Aquasol Make - Pen type Our unique designed and engineered DO meters are handheld, waterproof and dustproof that float if dropped in liquid. Its compact design and technology helps to measure dissolved oxygen/oxygen percentage very effectively at the same time. Testing with portable oxygen meters determines whether or not you have optimal dissolved oxygen levels necessary for good water quality. For accurate results this test should be performed on site. Our handheld type advance microprocessor based, fast and accurate DO meter is ideal for such applications. These meters are cost effective and come encased in a protective carrying pouch for safety and portability. Features: Microprocessor based for fast and accurate measurements. Large LCD display DO and temperature readings simultaneously. Simple to calibrate by one keyboard and ATC. Mewmory with Data - hold and max/min and shows PTS after calibration. Easy to replace the DO probe module. Model : AM-DO-01 Range : 0 to 20mg/L Accuracy : ±0.2 + 1 digit Resolution : 0.01 ATC : 0 to 50 deg C Power : AAA - DC 1.5V x 4 batteries Dimensions : 195 x 40 x 36mm Weight : 135g