Feature: 1.6-in-1 Meter Bluetooth-compatibility: Driven by mobile applications, it can professionally measure pH, ORP, chlorine, EC, TDS and temperature. It is applicable to domestic drinking water, hydroponics, laboratories and aquariums. 2.Cloud Data Management System: Accurate real-time Bluetooth data mission, with clear measurement values. Allows you to save, manage, and share test data at your fingertips without worrying about data loss. 3.Automatic Calibration of pH Tester: High sensitivity glass probe is used. Compared with other pH meters, pH is a three-point calibration method. Our pH is a five point calibration method and is equipped with calibration powder (pH 4.00, pH 6.86, pH 9.18, pH 7.00, pH 0.01). You can easily calibrate to ensure the accuracy of the measurement. 4.Comprehensive Information Display: Just immerse the pH meter electrode in the solution to be measured, and the reading can be quickly displayed on the APP. Multiple parameters are displayed at the same time, and the mobile phone APP controls the backlight display. 5.High Precision Water Quality Tester: The high-precision algorithm chip and electrode of our digital water quality tester ensure accurate and fast response. The green backlight LCD design ensures that you can read the measurement results under any conditions. Specification: PH value range: 0.1-14.0 Resolution: 0.1ph Precision: ± 0.1ph Temperature range: 0.1 ℃ - 8.0 ℃ 31.2 ℉ - 176 ℉ Resolution: 0.1 ℃/0.1 ℉ Accuracy: ± 0.5 ℃ EC range: 0-1999us/cm, 10.01-20.0mS/cm, 2000-10000uS/cm Resolution: 1uS/cm 10uS/cm 0.01mS/cm Precision: ± 2% F.S. TDS range: 0-999ppm, 1000-9990ppt Resolution: 1ppm 10ppm Precision: ± 2% F.S. CL range: 0.1-4.0mg/L Resolution: 0.1mg/L ORP range: ± 999mv Resolution: 1mv Precision: 15mv Battery: 3 x AAA, excluding Display: LCD digital display Backlight: APP control Temperature Note: 1. Please allow 1-3 mm error due to manual measurement and 1-3g weight error make sure you don't mind before ordering. 2. Due to the lighting of the photos and the difference of monitors, the pictures may not reflect the actual color of the real item. Please make sure you don't mind before ordering, thank you! About Shipping: 1.please pay attention to your delivery address such as: name, street, house number, doorbell/email without name, etc. is correct, or the order will not be delivered correctly. 2.All items will be shipped within 3 business days after the payment is received. Most times you will receive them within 8-12 days then. The specific delivery time is depend on circumstances. 3.During the shopping process, if you have any questions, please feel free to consult us, we will reply you within 24 hours Hope you have a pleasant shopping experience!