•Ideal for food industry. •Determine whether or not the correct amount of sanitizer is present. •Perform free-chlorine checks for wash solutions used in fruit, vegetable and poultry processing. •Use the high range free-chlorine strips to test wash solutions used to clean food equipment. Strips can easily be used in the processing plant. •Reagents are impregnated on the test strips. No chemicals need to be added. •Designed to resist interference from monochloramines.