1. [Real-time data reception] Wireless online remote monitoring, real-time data reception, automatic storage and automatic coverage after 30 days. 2. [Automatically recognize and correct] PH button on the host panel automatically recognize and correct, EC, TDS and SALT are buttons for correction (you can choose correction according to your habits), press plus and minus sign to add and subtract values for correction. 3. [Simple to use] Click PH to view the details, you can check the day, week, month and 15 seconds to transfer the dataset as well as the data curve graph to provide analysis. 4. [Alert Point] Click PH alert to set the highest and lowest alert point, and you can set in-app SMS notifications or pop-ups, and also send pop-up message automatically when exceed the set value. 5. [Wide Application] The water quality tester is widely used in various situations such as food processing, aquariums, sewage treatment plants, laboratories, food testing etc. Item Type: Water Quality Tester Material: ABS Product Size: Approx. 130 x 77 x 31 mm / 5.1 x 3 x 1.2 inches Power supply: DC6V Reception: PH: 0.00-14.00 pH WE: 0-19000us / cm, 0-199.0ms / cm TDS: 0-19900ppm, 0-199.0ppt SALT: 0-199.9pts, 0% -20% SG: 0.990-1.400 Temperature: 0 -50 (32 -1220 ) Resolution: PH 0.01 PH WE: 1us / cm (<1000us / cm), 10us / cm (> 1000us / cm), 0.1ms / cm TDS: 1ppm (<1000ppm), 10ppm (> 1000ppm), 0.1ppt SALT: 1ppm (<1000ppm), 10ppm (> 1000ppm), 0.1ppt, 0.01% SG: 0.001 Temperature: 0.1 C (0.2 F) Precision: pH: 0.03 pH SALT EC TDS: 2% FS Temperature: 1.0 C Weight: Approx. 970g / 34.2oz Package List: 1 x water quality tester 1 x adapter 1 x electrode 1 x connection line 2 x suction cup 1 x bracket 1 x Manual 1 x storage box Note: Online monitoring instrument, mainly for 24 hours online monitoring, real-time and clear knowledge of various online monitored water quality data. Application phones are compatible with Iphone and Android systems. Switching the language and region of the phone can automatically convert Chinese and English characters of the application. In places where there is no wireless Wi-Fi, you can use your phone to turn on the hotspot to connect to the APP. 1. Remove the protective cover. Connect the pH electrode and temperature electrode. 2. Wash the electrode with distilled water and dry it 3. Plug in the power adapter to turn on 4. Place the pH electrode, temperature electrode, and TDS electrode in the test solution. Stir gently and take a few seconds to get the reading steadily 5. Turn off the meter after use. Wash the electrode with distilled water. Put on the protective cover. For details, see the user manual