the strips are easy to use, and fast. cheap to use for frequent checking too. will show range for hot tub or pool. always fresh here.
Leisure Time Spa & Hot Tub Test Strips - Chlorine & Bromine
Maintaining the right chemical levels in your water is an essential part of keeping your spa clean and balanced. Leisure Time Test Strips for chlorine and bromine are the fast, easy, and cost-effective way to accurately test your levels of chlorine, bromine, pH, calcium hardness, and total alkalinity.
The Easy Way to Balance Spa Water
Test strips for spa water are less complex than liquid test kits to find the same result. To use these test strips, simply dip one into the spa; it will change colors according to your hot tub's chemical levels. Compare your results to the chart on the back of the bottle and adjust accordingly -- that’s it! These test strips for spa water are compatible with chlorine, bromine, and ozone sanitizers too, so you can use them on a wide variety of spas and hot tubs.