carrying case, four AAA alkaline batteries, sample cells, and Hach Communication Dongle. Reagents are sold separately.
The DR300 series continues Hach's legacy of single-parameter colorimeters for water testing. These units are factory calibrated, so you only need to zero the unit before taking readings. Secondary calibration sets are available for some parameters to meet regulatory requirements. New features include a more intuitive interface to reduce potential manual errors, and larger digits on the backlit display.
Range will depend upon test used.
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