With the Beachcomber Water Test Strips with APP Function, you can test your hot tub in 15 seconds to see if your hot tub water is safe, comfortable and ready to use. Using a small sample of your hot tub water, you can test your Chlorine or Bromine Sanitizer, Total Alkalinity, Total Hardness and pH level.
Download the free newest updated version of the Beachcomber H20CHK from the Apple Store or Google Play.
 
Pack of 50.