Promotional price valid on web orders only. Your contract pricing may differ. Interested in signing up for a dedicated account number?
Learn More

YSI™ pHotoFlex™ Colorimeters

Waterproof, multiparameter colorimeters are ideal for laboratory and field testing

Manufacturer:  YSI™ 251200Y

 View more versions of this product

Catalog No. 15-177-702

Add to cart

Includes: pHotoFlex pH/SET or STD/SET: pHotoFlex pH or STD colorimeter, field case with field tray, vials, pH electrode (with pH/SET), 2 each 10 mL and 2 mL syringe, empty cuvettes 16+28 mm, cleaning tissues, stand, 2 empty buffer bottles, beaker, screw driver, PC-software LSdata, and RS232 PC cable



  • Large, backlit display
  • Data logging enables exporting data to computer using LSdata software
  • User-defined programs
  • Flexible, fixed adapter with flip design

pHotoFlex STD

  • For colorimeter only
  • Data storage; 100 data sets
  • No. of tests: 85
pHotoFlex pH
  • For colorimeter and pH electrode
  • Data storage; 1,000 data sets
  • No. of tests: ~138 tests
  • Offers BNC connection

Order Info

  • Dimensions : 17H x 86W x 236mm L (4.6 x 3.4 x 9.3 in.)
  • Weight : 0.6kg (1.3 lb.)


CE Marked, ETLus, cETL, IP67 waterproof

Warranty and Services




9.3 x 3.4 x 4.6 in. (23.6 x 8.6 x 11.7cm)
4.6 in.
9.3 in.
1.3 lb.
3.4 in.
LED filter, case, tray, stands, vials, pH electrode, syringes, cuvettes, cleaning tissues, buffer bottles, beaker, screwdriver, Lsdata software, RS232 PC cable, BNC connector
1000 Data sets
pHotoFlex pH colorimeter set
Backlit LCD
2 Year
0° to 50°C
Provide Content Correction

We continue to work to improve your shopping experience and your feedback regarding this content is very important to us. Please use the form below to provide feedback related to the content on this product.

Product Title

By clicking Submit, you acknowledge that you may be contacted by Fisher Scientific in regards to the feedback you have provided in this form. We will not share your information for any other purposes. All contact information provided shall also be maintained in accordance with our Privacy Policy.

Cancel Submit