Function:<br>1. A pretty essential tool for the pool and spa, ideal for simple PH and CL2 water testing operations.<br>2. The large screen shows the test result at both PH and chlorine levels for easy reading.<br>3. Easy to use and instant and accurate result, no chemical use, easy to use.<br>4. Lightweight and easy to carry, convenient to use, you can save time and money with this elektro-tester.<br>5. High accuracy, stable and reliable performance, small size, suitable for portable use.<br>Specification:<br>Article type: Water quality tester<br>Material: pcv<br>Color: as shown in the picture!<br>Weight: approx. 216g/7,6 oz<br>Applications: as a water quality detector<br>Application: For aquaculture, swimming pool<br>Check the residual chlorine content:<br>The recommended residual chlorine content for pool water or hot spring water ranges from 1,2 to 1,7 ppm<br>A) Set the indicator to adjustment point.<br>B) Hold the tester in one hand and the test rod in the other. Insert the metal rod into the water into the black position. Take a reading when the indicator stops swaying.<br>C) Leave the tester in water and continue the pH test according to the instructions.<br>PH test:<br>The recommended pH for pool water or hot spring water is 7,2 to 7,8<br>A) Leave the tester in the water and turn the knob in the pH direction until you hear a click (the battery should be removed when reading the pH value).<br>B) Wait for the pH reading after the indicator stops swaying.<br>C) Gently dry the test rod, insert it into the gap near the tester and store<br>List of packages:<br>1 x water quality tester<br>1 x User Manual