Hanna HI-9146-04 Portable Dissolved Oxygen MeterThe Hanna HI9146 04 is a durable and waterproof portable dissolved oxygen (DO) meter, designed for precise and reliable DO measurements in a variety of water quality applications. Featuring a polarographic DO probe, automatic temperature compensation, and a backlit LCD, the HI9146 04 is ideal for environmental monitoring, aquaculture, wastewater treatment, and laboratory use. With its user friendly interface and calibration reminders, it ensures
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