SUITABLE FORCL2 tester is suitable for swimming pool, spa, hot tub, etc. It is NOT recommended to immerse the probes in any liquid other than pool or spa water. Recommended chlorine level for pool and spa: 2 to 1.7 ppm and 7.2 to 7.8 ph for pH level for swimming pool and spa. WIDE SCREEN The water quality analyzer can measure quickly and accurately pH and CL2. The large screen displays the test result on pH and CL2 for easy and accurate reading. EASY TO USE The chlorine tester simply involves immersing the pH meter electrode in the solution and press the button to measure. Portable design, easy and comfortable to use. High precision design, with dial plate, easy to read. HIGH QUALITYThe spa chlorine tester is made of premium plastic shell, durable and sturdy. Specially designed for family swimming pools PRACTICAL TOLA practical tool for testing water pH and chlorine level for swimming pool and spa. Easy to use, you can quickly test if chlorine and PH are within the ideal range. The ideal tool for quickly and accurately measuring pH and chlorine to maintain your pool or spa within a safe chlorine and pH range An electrical pH and chlorine (Cl2) level tester for routine monitoring of pH and chlorine levels in swimming pools, spas and various sources water. When chlorine and pH are out of whack, it can lead to diarrhea and ear and skin infections. Good chlorine and pH keep bad bacteria away: If the pH is too high, the electricity that the chlorine kills will run out. Chlorine can also be consumed when large amounts of nitrogen (feces, urine, sunscreen or sweat) or other organic matter enter the pool. This is why chlorine and ph are tested Note: It is not recommended to immerse the detector in water other than pool or spa water. Specification: The recommended chlorine level for pools and spas is 1.2 to 1.7 ppm Recommended pH for pools and spas is 7.2 to 7.8 Size Main unit: 190 mm x 20 mm Handle probe: 150 mm long Probe (only): 48 mm long Cable (only): 300 mm long Power supply: 1 AA alkaline battery (1.5 V) Bare metal weight: 193g b (without battery) 1 ph and Cl2 probe tester 1 manual, 1 sandpaper, color box packaging