Feature 1Data Storage: The data can be automatically and manually saved, and the saved data can be exported to a form sheet. 2Premium Design: The digital water meter is made of ABS material, and the hydrogen measuring pen is sturdy, durable, and not easily damaged. The hydrogen testing pen adopts a backlight LCD design, which can clearly read in any dark environment. 3Reliable Results: The hydrogen probe has high sensitivity and excellent performance. The hydrogen measuring pen adopts a detachable probe design, which is convenient to use and easy to operate. 4Wide Application: The portable water quality tester is convenient to read. The water tester is suitable for swimming pool experiments, hydroponic food, aquarium, gardening, laboratories, purified drinking water, hydroponics, etc. 5Simple Operation: Simply immerse the electrode in the solution to be tested, and the data will be synchronized to the mobile app for multiple data simultaneous display, making it convenient and fast.Item Type: Digital Hydrogen MeterModel: BLE-9002Material: ABSUse: For the testing on drinking water, water ionizer, hydrogen rich water cup, hydrogen rich kettle and other effect tests, as well as data measurement during laboratory research on hydrogen water. Battery: 3 x button battery 3V LR44, without battery. H2 Testing Range: 0-2990ppb, that is, 0.00~2.9ppm. H2 Test Accuracy: 1ppb, that is, 0.01ppm. Temperature Test Range: 0.1 ~ 60.0, that is, 32.1 ~ 140.0. Temperature Testing Accuracy: 0.1, that is, 0.1Temperature Test Error: 0.5ATC: 0.1 ~ 60.0 .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 Digital Hydrogen Meter1 x User Manual