two 25-mL glass vials, two 10-mL plastic vials, reagents, four AAA batteries, and hard-sided carrying case.
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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