Digital PH/Chlorine/ORP/EC/TDS/Salinity/Temp/FAC Pool Water Quality Monitor PH Tester For Swimming Pool Aquarium Hydroponic Spa

7 in 1 Chlorine Meter Specifications: PH Range: 0.1-14.0 Resolution: 0.1ph Accuracy: ±0.1ph FAC(Free Available Chlorine) Range:0.1-4.0ppm Salt Range:0-10000ppm,10.1-200.0ppt, 0.01%-25.00% (1000ppm=1ppt) Resolution: 1ppm, 10ppm Accuracy: ±2% F.S. EC Range: 0-10000uS/cm,10.01-19.99mS/cm, 20.1- 400.0mS/cm , Resolution: 1uS/cm 10uS/cm 0.01mS/CM Accuracy: ±2% F.S. TDS Range: 0-10000ppm,10.1-200.0ppt Resolution: 1ppm 10ppm Accuracy: ±2% F.S. 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(Not include) Size : 42*42*183mm Calibration: pH:6.86/4.00/9.18, ORP:222mv All functions have been calibrated when the product is sent out, please use it directly The upgraded free Chlorine Tester helps you to know the free chlorine value of your pool at any time, providing you with a healthy swimming environment. This is a great value-for-money water test pen. pH and EC values for most plants. A standard temperature for hydroponic water is 72.0 ~ 75.0°F, pH should be between 5.5 ~ 6.0, with EC of 1.2 ~ 2.0mS/cm. Optimal EC range:800-2400uS/cm.Check the water or hydroponic nutrient solution to keep the pH and EC of the planting water correct. Maintain your swimming pool pH: 7.2~7.8pH, ORP: 650~750mV, FAC: 1~3ppm, SALT: 2700-3400 ppm and you will get the best performance and clean water. This range is also more acceptable to the body and the salt chlorinator works more efficiently. TDS stands for Total Dissolved Solids in PPM, and the purer the water, the lower the TDS value, and the higher the opposite. Generally speaking, if the TDS is 40 or less, the water is safe to drink. pH level between 7.2 and 7.8 is recommended for optimal performance and the cleanest water. Packing List: 1* Water Quality Tester 1*English Manual 3*PH Calibration Liquid 1*ORP Calibration Liquid