Features: 1APP Monitoring: This PH tester supports mobile APP real time online monitoring, multiple parameters are displayed quickly and simultaneously. 2Synchronous Display: Steeping this water quality tester into water to be tested, and the data will be synchronized to the mobile APP to display multiple data at the same time. 3Auto Data Save: This EC meter features auto data storage and sharing, so the data can be saved automatically and manually. The saved data can be exported to excel and shared with your friends. 4Limit Setting: This PH meter allows you to set the PH/EC/ORP high or low limit according to user needs, if the test result is higher or lower than the range value, the value will be displayed in red. 5Wide Application: This 6 in 1 water PH tester is widely used in testing drinking water, aquarium, laboratory, swimming pool, fish tank and more. Package included: 1 x PH Tester&nbsp(Battery Not Included) 1 x User Manual 1 x Wrench