Feature 1Large Screen Display: This PH tester features large screen display that allows you to read the results quickly and clearly, offering more convenience. 2High Accuracy: This water quality tester supports 0 to 60 automatic temperature compensation, which eliminates the measurement deviation caused by the solution temperature change. 3Multi Function: This EC meter supports the measurement of PH, TDS, EC, ORP, SALT, H2, S.G, TEMP, , and Fertility. 4Easy Operation: This PH meter is designed with simple buttons layout, which can be easily operated, and it's powered by 3 pieces of LR44 button batteries(battery not included). 5Wide Application: This water PH tester is perfect for agriculture, aquarium water, hydroponics, swimming pool, food salinity and drinking water.Item Type: PH TesterMaterial: ABSEC Measuring Range: 0 to 10000us/cm, 10.1 to 200ms/cmH2 Measurement Range: 0 to 2400ppb 0 to 2.400ppmPH Measurement Range: 0.00 to 14.00PHS.G Measuring Range: 1.000 to 1.222Water Quality TDS Value: 0 to 10000ppm 10.1 to 200.0pptSeawater SALT Value :0.01% to 25.00%, 0 to 10000ppm, 10.1 to 200.0pptSalinity Value: 0.01% to 25.00%, 0 to 10000ppm, 10.1 to 200.0ppt / Convertible Temperature Unit, 0 to 60 /32 to 140Batteries: 3 x LR44 1.5V Button Batteries (Battery Not Included)10 in 1 Functional Measurement: PH, TDS, EC, ORP, SALT, H2, S.G, TEMP, , and Fertility.Product Length: Approx. 185mm / 7.3in ( Manual Measurement, Slight Error May Exist ) .wang-edit-text{ font-family:'Arial' !important; } .wang-edit-text table { border-top: 1px solid #000; border-left: 1px solid #000; } .wang-edit-text table td, .wang-edit-text table th { border-bottom: 1px solid #000; border-right: 1px solid #000; padding: 3px 5px; } .wang-edit-text table th { text-align: center; }Package List1 x PH Tester1 x User Manual4 x Powder BagNoteHIGH ACCURACY ELECTRODE: Please keep the electrode clean. After use, please wash the electrode with distilled water or purified water. During use, please try not to collide or rub the electrode to avoid damage.