PC102 swimming pool water quality tester. 1. You all need to prepare a 1.5ppm chlorine solution to test the pool water 2. If you are testing 1.5ppm chlorine (not sure if you will be able to find a calibration point), use traditional test strips. 3. Once calibrated for you, there is no need to re-calibrate unless you change the measuring pool with different pool water. A brief description. Tester is designed for pool or spa home scale (does not include salt lake pools, industrial or usage). After a successful calibration, you can quickly and easily test your pool water for chlorine and pH. Let the "traditional liquid chlorine acid-base kit" no longer confusing With this useful tester you can quickly test to see if your chlorine and pH levels are within the ideal range of 7.8: Chlorine 1.2 1.7ppm and pH 7.2. If your test results are outside of this range, a helpful piece of information for you to adjust your pool for chlorine and acid. This is a great tool that you may need to keep your pool water. Specification. Recommended chlorine levels for swimming pools and spas are 1.2, 1.7ppm. Recommended PH pool and SPA levels are 7.2, 7.8. Package Quantity: 1 piece