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].1 x Water Quality Detector 1 x Plug 2 x Electrode 1 x Connecting Wire 1 x Support 2 x Suction Cup 1 x Manual