Mobile WaterLink® Spin Touch® simplifies all your pool and spa testing needs. Contained in each sealed reagent disk is the exact amount of reagent needed for complete testing series. Simple testing is done as follows: fill less than 3 mL of water into your Spin reagent disk and in 60 seconds your tests are completed automatically! Mobile WaterLink® Spin Touch® cuts time and clean-up with its immense precision. Simple and effective analysis for all users!