Features：1、Custom Range: The PH tester can set the maximum or minimum limit of PH/EC/ORP according to user requirements. If the test result is out of range, the value of The PH tester will be displayed in red 2、Backlight Display: The PH tester supports mobile phone wireless connection version 5.2, with backlight, supports mobile phone control 3、Highly Sensitive Electrode Tip: The PH tester has a highly sensitive electrode tip, probe insertion design, removable and replaceable 4、Automatic Data Storage: Test data can be automatically stored and shared, the saved data can be exported to Excel, and can also be shared with your friends 5、Simultaneous Display of Data: Just immerse the electrode in the solution to be tested, the data will be synchronized to the mobile APP, and multiple data will be displayed at the same time, without frequent operation to view the dataSpecification：Item Type: PH TesterMaterial: ABSPH Range: 0.00-14.00 pHResolution: 0.01 pHAccuracy: ±0.05 pHEC Range: 0-9990uS/cm;, 10.01-19.99 mS/cm, 20.1-200.0 mS/cmResolution: 1us/cm, 0.01mS/cm; 0.1ms/cmAccuracy: ±2% F.STotal Dissolved ConcentrationRange: 0-999ppm; 1000-9990ppn; 10.1-100.0 pptResolution: 1 ppm; 10ppm; 0.1pptAccuracy: ±2% F.SSalt Range: 0.01-25.00 %; 0-999 ppm; 1000-9990 ppm; 10.1-100.0 pptResolution: 0.01 %; 1ppm, 10ppm; 0.1pptAccuracy: ±2% F.SS.G Range: 1.000-1.222ORP Range: -1200mV to +1200mVResolution: 1 mVAccuracy: ±4 mVTemp Range: 0.1 DegreeC-60.0 DegreeC: 32.1 DegreeF-140,0 DegreeFResolution: 0.1 DegreeC:0.1 DegreeFAccuracy: ±0.5℃Calibration PH: 6.86/4.00/9.18 or 7.00/4.00/10.01EC/Total Dissolved Concentration/Salt: 1413uS/cm; 12.88 mS/cm; 111.8 mS/cmORP: 256mVBattery: 3 x LR44 Button Battery (Battery Not Included)Product Size: Approx. 187 x 37 x 37mm / 7.4 x 1.5 x 1.5inMobile Phone Control: SupportBacklight: SupportBT Version: Mobile Phone BT5.2 VersionApplication: Widely Used in Drinking Water, Sewage Treatment, Water Purification, Fish Tank, Aquaculture, Swimming Pool, Hydroponics, Medicine Treatment, Etc.Weight: Approx. 160g / 5.6ozPackage List：1 x PH Tester (Battery Not Included) 1 x User Manual