The Hach DR300 Free and Total Chlorine Colorimeter offers reliable chlorine measurements with an easy-to-use interface and durable, waterproof design. Perfect for quick, reliable water …

The result is the Hach DR300 Pocket Colorimeter, the next generation in portable instrumentation. Reduce data collection hassles, eliminate transcription errors, and ensure stronger compliance traceability.

Perfect for quick, reliable water quality testing. The Hach DR300 Chlorine and pH Pocket Colorimeter is a portable and rugged Chlorine and pH photometer designed for portability and …

Single parameter portable photometer for measuring Chlorine, Free + Total, Mid-Range in water. Maintains the Pocket Colorimeter legacy of reliability.

Whether you're testing drinking water or wastewater, the Hach DR300 colorimeter is the standard in chlorine measurement. It features Hach's tried and true optics, a familiar keypad, and a large backlit display—all packaged in an ergonomic design.

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.

Single parameter portable photometer for measuring Chlorine in water.

Perfect for quick, reliable water quality testing. The Hach DR300 Phosphate Pocket Colorimeter is a portable and rugged Phosphate photometer designed for portability and simplicity, that …