YASHANG PC102 swimming pool water quality tester. 1. You all need to prepare a 1.5ppm chlorine solution for your pool water inspection purpose 2. If you are testing for 1.5ppm chlorine level or not (unsure whether or not being able to find the calibration point), use traditional strips. 3. Once you calibrate it for you, you don't need to recalibrate again unless you change the measuring pool with a different pool water. A brief description. The risepro tester is designed for swimming pool or spa home proportions (excluding salt lake water pools, industrial or use). After a successful calibration, you can test your pool water for chlorine and pH levels a quick and easy way. So no more complicated and confusing "traditional liquid chlorine and acid base kits"! With this practical tester you can quickly test if your chlorine and pH are within the ideal range of 7.8: chlorine 1.2 1.7ppm and pH 7.2 lied. If your test results fall outside of this range, give you a piece of useful information to adapt the pool accordingly for chlorine and acid-base. This is a great tool you may need to keep your pool water. Specification. The recommended chlorine level for swimming pools and spas is 1.2, 1.7ppm. Recommended PH pool and SPA level is 7.2, 7.8. Dimensions (cm). Mainframe: 190 x 120 mm. Probe with handle: 150 mm long. Probe (only): 48 mm long (black strap not included in scope of supply). Cable (only): 130 mm long. Power supply: 1 AA 1.5 V alkaline battery. Weight: 160 g (without battery).