YSI pHotoFlex Colorimeters

The YSI pHotoFlex Colorimeter is rugged, waterproof, and ideal for laboratory and field testing.


  • 35 pre-defined tests, 50 user-defined tests & 100 data set memory
  • Large, easy to read backlit LCD display
  • IP67 waterproof case with optional benchtop Lab Station
List Price $1,256.75
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YSI pHotoFlex Colorimeters

The YSI pHotoFlex line of colorimeters is the newest addition to YSI's full range of colorimeters. These rugged, waterproof, multiparameter colorimeters are ideal for laboratory and field testing. The instruments feature a large, backlit display, waterproof rating, data logging with the ability to export data to a computer using LSdata software, user-defined programs and a 2-year warranty.


  • Calibration adjustment for selected methods
  • Data storage; 100 data sets
  • Large, easy-to-read backlit LCD display
  • IP67 waterproof case; easy to hold or set on a benchtop (lab station also available)
  • Flexible, fixed adapter for various cell types features a flip design to accommodate a variety of heights and diameters; it is also attached to prevent it from being lost
  • 85 parameters - reagents can be used on YSI colorimeters or any other brand
  • PC connectivity to manage data (optional LSdata software) and update firmware or methods; barcode compatibility
  • pHotoFlex pH offers a BNC connection in order to take pH measurements directly and to measure the pH dependent parameter NH3
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YSI pHotoFlex Colorimeters
pHotoFlex STD LED colorimeter
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pHotoFlex STD/SET LED colorimeter kit
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YSI pHotoFlex Colorimeters
pHotoFlex pH/SET LED colorimeter kit
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