Pool Free Chlorine Tester - Digital chlorine tester can quickly help you monitor the concentration of free chloride ions in your pool. For most pools, the free chlorine concentration is usually between 1-3 ppm. This can effectively purify the water while keeping the water clear and transparent, making the pool look more beautiful and allowing swimmers to enjoy a healthy and enjoyable swimming experience. Saltwater Pool Salinity Tester - Salinometer can help check the salt content in saltwater pools and hot tubs with salt chlorination systems (ideal level: 2700-3400ppm). Helps salt chlorinators work more effectively at the correct salinity value. Salinometer can help you keep your pool clean and avoid too much or too little salt that can negatively affect your body and pool equipment. ppH Pool Level Tester - pH: 0.00~14.00; Pool pH tester can help check the pH value of your pool. Maintaining the correct pH value is essential for the operation and maintenance of saltwater pools. Generally speaking, the ideal pH range is 7.2 to 7.8. Regular pH testing and adjustments help purify the water, ensure comfortable swimming, and protect pool equipment from damage. Pool Chlorine Tester VS Pool Test Strips - When testing with test strips, you must evaluate the pool based on the color of the test strip; however, a chlorine meter is simpler, more accurate, and more user-friendly than test strips. Simply place it in the water for a few seconds to get an accurate reading. Easy to Use - The 7-in-1 ORP meter accurately measures FAC, pH, SALT, EC, TDS, ORP, and TEMP values. The backlit design allows for measurements in dim environments. Pocket-sized design helps you measure your in-ground pool, spa, hot tub, anytime, anywhere. Having trouble finding a saltwater pool tester that is both accurate and easy to use? The Ilyi Multi-Function pH EC Meter will give you the answer. Note: The pH value of the pool water should be between 6.5-8 pH and the ORP value should be between 487-840 mv so that the FAC (chlorine) value can be displayed correctly. If either the pH value or the ORP value is not within this range, the FAC will not be displayed correctly. pH Range: 0.1-14.0 Resolution: 0.1 pH Accuracy: 0.1 ph FAC (Free Available Chlorine) Range: 0.1-4.0 ppm Salt Range: 0-10000ppm, 10.1-200.0 ppt, 0.01%-25.00% (1000 ppm = 1 ppt) Resolution: 1 ppm, 10 ppm Accuracy: 2% FSEC Range: 0-10000uS/cm, 10.01-19.99 mS/cm, 20, 1-400.0 mS/cm, Resolution: 1uS/cm 10uS/cm 0.01 mS/CM Accuracy: 2% FSTDS Range: 0-10000ppm, 10.1-200.0ppt Resolution: 1ppm 10ppm Accuracy: 2% FS ORP Range: 999mv Resolution: 1mv Accuracy: 15mv Temperature range: 0.0-60.0 32.0-140 Resolution: 0.1/0.1 Accuracy: 0.5 Battery: 4*1.5V LR44 (Color: As shown in the picture Material: Plastic Package Contents: 1 x 7-in-1 Tester The above package contents only include, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture to be slightly different from the actual item. The allowable measurement error is +/- 1-3 cm.