This ATAGO Pal-39S refractometer is ideal to measure Hydrogen Peroxide (H2O2) concentrations in liquid samples (0 to 50%). 
 
Hydrogen peroxide is used in algicides and fungicides in greenhouses and horticultural farms.
 
Algae growth management: Control the amount of hydrogen peroxide in water bodies like ponds and reservoirs on farms, preventing water quality issues and maintaining healthy aquatic ecosystems.
 
Hydroponic and soilless cultivation systems: manage application of hydrogen peroxide in your cultivation systems to help increase soil aeration and improve the oxygen content in the root zone.
 
How to use: place a few drops of sample onto the sensor prism, press the start button, and the hydrogen peroxide concentration is displayed in seconds.
 
Provides instant reading on a digital display.
 
Its compact and rugged design with waterproof IP65 casing ideal for lab and field operations.
 
Rapid results: your reading is ready within 5 seconds.