Feature 1Water Quality Testing: W218 water quality meter is a 24 hour online monitoring tool. The app is compatible with for IOS and for Android systems. Switch the mobile language and region, and automatically convert different words on the APP. 2Online Wireless Remote Monitoring: The 8 in 1 water quality detector is used for online wireless remote monitoring, real time data receiving, and data is automatically stored and saved 30 days later. 3Wireless WIFI APP Function: Wireless WIFI remote monitoring, connect mobile APP, multi parameter test, automatic correction, automatic data storage, save data for 30 days. 4Wide Applications: Water quality tester is widely used in aquarium, glass fish pond, mining, medical research, agriculture, laboratory, water environment, quality control and other fields. 5Real Time Data Detection: Click pH to view the details, and view the date [one day], week [one week], and month [one month].Item Type:Water Quality DetectorMaterial: ABSColor: As Pictures ShownWeight: Approx. 745g / 26.3ozRange: pH: 0.00-14.00pH ORP: -2000mv ~ +2000mvEC: 0-19000us/cm 0-199.0 ms/cmCF: 0-1999.0CFTDS: 0-19990ppm 0-199.0pptSalt: 0-199.9ppt 0%-20%S.G: 0.990-1.400Temperature: 0-50C (32F~122F)Resolution: pH: 0.01PH, ORP: 1mvEC: 1us/cm(<1999us/cm)10us/cm (>1999us/cm)0.1ms/cmCF: 1CFTDS: 1 ppm (<1999ppm)10 ppm(>1999ppm)0.1 percentage pointSalt: 1ppm (<1999ppm)10 ppm>1999ppm0.1 percentage point0.01%S.G: 0.001Temperature: 0.1C (0.2F)Accuracy: pH:0.03pHORP: 5mv EC, CF, TDS, SALT: 2%F.STemperature: 1.0CBattery: DC 6VTemperature Compensation: 0C-50COperating Temperature: 0C-50CProduct size: Approx. 152x80x26mm / 6.0x3.1x1.0inApplication: Aquariums, Glass Fish Pond, Mining, Medical Research, Agriculture, Laboratories, Water Environment, Quality Control and Other Fields .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 Water Quality Detector1 x Plug2 x Electrode1 x Connecting Wire1 x Support2 x Suction Cup1 x ManualNoteThe electrode must be recalibrated: it has not been calibrated for a long time. Regular and long term continuous use. High accuracy is required.