PC101 PH Meter Portable Water Quality Measure PH CL2 Chlorine Tester Level Meter PH Tester for Swimming Pool Spa AquariumDescription:This water quality tester is designed to test pH and chlorine levels for swimming pool and spa. It is easy to use, no more chemicals needed. The large screen quickly shows the test result with high precision. LightsWeight and compact, easy to carry. Features:1. Made of plastic shell, and sturdy.2. easy to operate, no more chemicals needed.3. A convenient tool for testing the pH and chlorine levels of pool and spa water.4. the large screen displays the test result for pH and chlorine levels for easy and accurate reading.5. Lightweight and compact, easy to carry. With hole for convenient hanging. Specifications:Condition: Material: Plastic + Metal Color: Gray WhiteSize: Approx. 18 x 11.6 x 3.1 cm/7.1" x 4.6" x 1.2" Power Supply: 1 x 1.5V AA Batteries (Not Included)Recommended Chlorine Level for Swimming Pools and Spas: 1.2 - 1.7ppmRecommended pH Level for Swimming Pools and Spas: 7.2 - 7.8pHFugging Weight: 220g Quantity: 1 pcPackage Included:1 x Water Quality TesterNote:1. Please do not immerse the probe in any liquids other than pool or spa water.2. You need to turn the switch to close the position when not in use.3. Please store the tester in a cool and dry place. Usage: Before using the tester for the first time, you need to adjust it to match your pool or spa water with the following order:1. Check your pool or spa water using a conventional liquid test kit2. Write down the chlorine reading level as needed.3. adjustments are not required to achieve the proper pH.How to find the adjustment point for chlorine testing:1. insert 1pc AA 1.5V battery in the compartment where in the holder.2. Hold the tester in one hand and the probe in the other.3. Insert the cleaned metal probes into the water into the black B-I.4. mix the water slightly with the probe.5., with the probe still in the water, turn the wheel at first glance the tester until left in the direction of "CL". Slowly turn the wheel backwards to the right until the needle matches the chlorine level you recorded with the liquid tester convention (e.g. : 1.5ppm).6. Remove the probes from the water without touching the wheel. The pointer will move all the way to the right and stop at the letter between A and E. This letter is your "adjustment point". Note: Whenever you use this tester to test chlorine levels, you must adjust it to the "adjustment point" before you start testing. Chlorine Level Tests:Recommended chlorine level for swimming pools and spas: 1.2 – 1.7ppm1. Put the needle to the "adjustment point".2. Holding the tester in one hand and the probe on the other side, insert the probe into the water into the black strap. Wait until the needle rests on the better chlorine for reading.3. Leave the probes in the water. Testing pH levels:Recommended pH level for swimming pools and spas: 7.2 – 7.81. with the probe still in the water, turn the wheel until it clicks "pH" until it clicks (the battery must off for pH to read).2. wait until the needle rests on the pH to read.3. gently dry the probes and insert into the holder on the tester side for storage.