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YSI™ 900 Chlorine Colorimeter

For the measurement of Total chlorine or Free chlorine in field or lab

Manufacturer:  YSI™ 250900Y

Catalog No. 15-177-704

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  • Waterproof, single parameter instrument
  • Automatic data storage; 16 data-sets with date and time stamp
  • Large, backlit LCD display
  • IP68 waterproof case; easy to hold or set on benchtop
  • Innovative light shield
  • Improved resolution for specific range requirements
  • Auto shutoff ensures extended battery life

Chlorine Free
Range: 0.02 to 2.0mg/L
Method: DPD - Free Chlorine Reagent

Chlorine Total
Range: 0.1 to 8.0mg/L
Method: DPD - Total Chlorine Reagent

Order Info

  • Dimensions: 15.5L x 7.5W x 3.8cmH (6.1 x 3 x 1.5 in.) in.
  • Weight: 260g (0.5 lb.)


CE marked IP68 (1 hour at 0.1 meter); floats

Warranty and Services




3% Full scale
Automatic; 16 data sets with time and date stamp
6.1 x 3 x 1.5 in. (15.5 x 7.5 x 3.8 cm)
1.5 in.
6.1 in.
5°C to 40°C
530 nm
260 g
7.5 cm
Backlit LCD
Chlorine Colorimeter
3.8 cm
15.5 cm
2 Years
0.5 lb.
3 in.
Product Certifications


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