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2" (133 mm)
which causes an electric current
Heat index (also called "feels-like temperature") combines air temperature and relative humidity to reflect how hot conditions actually feel to the human body
It is equipped with a 12 foot cord and has a 20 second response time
Waterproof Dissolved Oxygen Meter Pen MJB3098-63-9 2" (133 mm)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
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