Even bottles of water can be affected by prolonged exposure to heat
with its three individual indicator dots changing color for brief
wait 1 minute for the colors to develop
Please note: these labels will deactivate if taken over 110°C (230°F)
The bottom three cells turn from white to black
Pool Check 5 in 1 Water Test Strips temperature sensitive labels Even bottles of water canOverview Measuring for 5 of the most important pool & spa parameters, Pool Check 5in1 is ideally suited for the demanding pool & spa owner who is concerned with proper pool & spa maintenance. Specification Parameters & Detection Ranges Free Chlorine Bromine: 0, 0. 5 1, 1 2, 3 6, 5 10, 10 20 ppm Total Chlorine Total Bromine: 0, 0. 5, 1, 3, 5, 10 ppm Total Alkalinity: 0, 40, 80, 120, 180, 240 ppm pH: 6. 4, 6. 8, 7. 2, 7. 6, 8. 2, 9. 0 Total Hardness: 0,