Description Digital water quality tester has holes, which is convenient to hang and carry, easy to use and does not require chemicals Water quality tester is Made of high quality plastic shell, which is non-toxic, harmless, sturdy and durable, and can be used for a long time. The PH tester can be used to test pH and the chlorine content of water in swimming pools and spas The design of the CL2 chlorine tester is ergonomic, light and compact, easy to maintain and use Portable tester water quality meter features a large screen to display pH and chlorine content test results for easy and accurate reading. Instructions Set Points: Before each use, set the tester for the pool or spa water to be tested in the following order: 1. Test pool or spa water with traditional liquid testing tools; 2. Record the chlorine reading for backup (1.5 PPM). 3. No need to adjust the PH. To find the tester set point: A. Place a 1.5V AA battery (positive side up) in the battery compartment of the handle. B. Hold the tester in one hand and the test stick in the other. C. Insert the cleaned metal rod into the water until the black position. D. Gently stir the water with a metal rod. E. When the metal rod is held in the water, turn the button on the front of the watch in the CL direction until it cannot move. Then slowly move back to the right until the pointer points to the position of the result measured by the traditional liquid test tool (eg 1.5). F. Remove the test rod from the water, being careful not to move the button. The pointer will slide to the right, stopping at a letter between A and E. This letter is the adjustment point. NOTICED : The meter should be adjusted to the adjustment point before each chlorine test. Test pH: The recommended chlorine level for pool or spa water is 7.2-7.8A) With the test stick in the water, turn the knob in the direction of the pH until it beeps (battery must be removed to read pH). B) Wait for the pointer to stop moving and take a pH reading. C) Gently dry the test stick, insert it into the slot next to the tester and store it. Chlorine content test: The recommended chlorine content of swimming pool water or hot spring water is 1.2 to 1.7 ppm, A. Adjust the pointer to the set point position. B. Holding the tester in one hand and the test rod in the other, insert the metal rod into the water to the black position. Wait for the pointer to stop swinging to take the reading. C. Leave the test stick in the water and continue to perform the pH test according to the instructions. specification 1. Essential tools for swimming pools, saunas and spas 2. The ideal tool for simply measuring the pH and C12 values of water 3. No chemical makeup, no more guesswork 4. Chlorine level within the safe measuring range: 1.2 to 1.7ppm 5. PH level within the safe measurement range: 7.2-7.8 6. Battery: use AA batteries (not included) Quantity delivered: 1 piece