General Description The ORAPXI 5-in-1 tester is an essential tool for measuring salinity, pH, TDS (total dissolved solids), electrical conductivity (EC), and water temperature in saltwater pools and spas. It ensures optimal operation of your salt chlorinator by checking the salt concentration, contributing to cleaner and healthier water. Technical specifications Salinity measuring range: 0 to 9990 ppm/10 to 100 ppm pH measuring range: 0.00 to 14.00 Recommended pH: between 7.2 and 7.8 Ease of use: quick measurement thanks to the LCD screen Compatibility and accessories Compatible with most spas and pools equipped with a salt chlorinator. Installation To use the tester, simply immerse it in the water of your pool or spa. Results are displayed in seconds on the LCD screen. Usage Use the tester regularly to: Monitor salinity levels for optimal chlorinator efficiency Measure pH to ensure water chemistry balance Get accurate measurements without guesswork, unlike test strips