Dual Range QAC Test Strip, Low Range: 0, 10, 20, 40, 80, High Range: 0, 100, 200, 400, 800, Applications: Food and Beverage, Laundry and Sanitation, Industrial Water Boiling and Cooling, Water and Wastewater, Chem
KidWind Small Water Pump with Tubing, Recommended for College and High School, to demonstrate power output from the wind and solar kit, makes comparing different turbine designs easy; simply measure how high different turbines can pump water using this mini pump