DR300 Pocket Colorimeter, Phosphate

Proven past. Innovative future.

The DR300 maintains the Pocket Colorimeter legacy of reliability while providing state-of-the-art data transfer capability and connection to Claros*. Reduce data collection hassles, eliminate transcription errors, and ensure stronger compliance traceability.
Please note that reagents are not included in the kit and need to be purchased separately.

*Claros connectivity currently available only in US, Canada and EU.

  • Connected*
  • Reliable
  • Simple


Optional Bluetooth connectivity allows you to safely transfer measurement data to Claros – Hach®’s Water Intelligence System – reducing errors and saving time by eliminating manual data entry.


Rugged, waterproof (IP67) design withstands whatever conditions you encounter in the field (drops, extreme temperatures, rain and dirt) and still delivers years of dependable, accurate measurements.


Simple, intuitive operation reduces potential manual error, ensuring accurate measurement data you can trust, time after time. Larger display with improved backlight makes reading measurements in all conditions even easier.

Absorbance 0 – 2.5 Abs
Data Logger Last 50 measurements
Detector Silicon photodiode
Dimensions (H x W x D) 34 mm x 69 mm x 157 mm
Display LCD with backlight
Enclosure Rating IP67, waterproof at 1 m for 30 minutes
Measurement method Phosver 3
Operating Conditions 0 – 50 °C; 0 – 90% relative humidity (non-condensing)
Parameter Phosphate
Power supply Four AAA alkaline batteries; approximate life is 5000 tests
Range 0.02 – 3.00 mg/L PO4
Region US
Sample cell compatibility 1 cm (10 mL), 25 mm (10 mL)
Source Lamp Light emitting diode (LED)
Spectral Bandwidth 15 nm filter bandwidth
Warranty 12 months
Wavelength 600 ±2 nm
Weight 0.25 kg
What’s included? Each DR300 Pocket Colorimeter comes as a ready-to-use kit in a sturdy custom carrying case (4660200), including batteries, sample cells (2427606), and a manual. Reagents have to be purchased separately.





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