DR300 Pocket Colorimeter · The DR300 maintains the pocket colorimeter legacy of reliability while providing state-of-the
· DR1900TM Portable Spectrophotometer · DR900TM Multiparameter Portable Colorimeter · Shop Now · Permachem® Powder Pillows
Instruments · DR1900 Portable Spectrophotometers · DR300 Lab Instruments Colorimeters · DR3900 Laboratory Spectrophotometer
ends December 5, 2025. Shop Now · Purchase a DR Series Spectrophotometer or Colorimeter, and Save Up to $1,000 on Powder
colorimeters, turbidimeters, sensors, and portable field test kits — each designed to support reliable water quality
by the human eye, it is measured by a photometer (colorimeter or spectrophotometer) to produce a more precise pH reading
ammonia). The measurement wavelength is 460 nm for spectrophotometers or 420 nm for colorimeters. Dimethylphenol Method
Ammonia Meter · With its rugged, waterproof design, the DR300 Pocket Colorimeter for ammonia and nitrogen provides dependable
proportional to the chlorine concentration. The color intensity is measured by eye, colorimeter or spectrophotometer
be used when an exact hardness value is required. Colorimetry or Spectrophotometry · Use a colorimeter or a
conditions to yield a yellow product that can be analyzed with a spectrophotometer or colorimeter. This method is used for
Testing · Portable Testing (color discs and colorimeters) · Online Process Testing · Method · Frequently Asked Questions
