Features1Wide Application: This water quality tester provides highly accurate measurement of EC, SALT, TEMP and S.G. 2High Accuracy: This water tester features high accuracy and wide range in measuring. Salinity and temperature can be measured at the same time. 3Temperature Compensation: This salinity meter is designed with temperature compensation since the temperature may affect the accuracy. 4Auto Power Off: This water tester will automatically power off after 5 minutes without any operation, saving the energy. 5Large LCD: This salinity tester is equipped with large LCD display that can display 4 digits and corresponding physical quantity.SpecificationItem Type: Digital Salinity TesterMaterial: ABSRange:EC: 0 to 19900us/cm. 0 to 199.0ms/cm(SALT 785)Salt: 0 to 10000ppm, 0 to 199.9ppt S.G: 0.990 to 1.400Temperature: 0 to 80 (32 to 176)Resolution:EC: 1us/cm(1000us/cm) 0.1ms/cmSalt: 1ppm (1000ppm), 0.1pptS.G: 0.001Temperature: 0.1 (0.2)Accuracy: TDS, EC, SALT: 2%F. Temperature: 1.0Battery: 3 x 1.5V (AG 13) (Battery Not Included)Temperature Compensation: 0 to 50. Operating Temperature: 0 to 50Product Size: Approx. 235 x 45 x 45mm / 9.3 x 1.8 x 1.8in ( Manual Measurement, Slight Error May Exist )Application: Ideal for Home and Laboratory PH Testing Applications, Including Drinking Water, Swimming Pools, Pond, Beer Brewing, Kombucha, Aquariums, Hydroponics, Laboratories, Food Processing, Etc.Package List1 xDigital Salinity Tester 1 x User Manual