7 in 1 Portable Pen PH/Temp/TDS/EC/ORP/S.G/Salinity Meter Digital Water Quality Tester Smart Monitor Online APP Control 40JEOOTDTY Features: Highly sensitive probe provides a full measuring range of 0-14 pH. Water quality tester designed in 7-in-1 format. PH, TDS, EC, ORP, S.G, salinity and temperature can be measured simultaneously with high precision. The ph meter for water hydroponics has an even better range of 0°c-60°c (32°f-140°f) so you can test with confidence in any environment. Pocket-sized and multifunctional, ideal for home and laboratory pH testing applications, including drinking water, swimming pool, pond. The app can set upper and lower pH limits, which can be set according to your needs. Specification: Material: ABS Measurement: About 187x3 7mm/7.4x1.5 inches Bluetooth-CompatibleTemperature Compensation Range: 0°c-60°c/32°f-140°fPH Range: 0-14Accuracy: ± 0.05PHPuard Includes: 1x Water Quality TesterNote: Please allow 1-3cm error due to manual measurement. Pls make sure you don't mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item.