Features: Highly sensitive probe gives you a full measurement 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. 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 multi-functional, for Ideal for household and laboratory pH testing applications, including drinking water, swimming pool, pond. The App can set the upper and lower limits of pH, which can be set according to your needs. Specifications: Material: ABS Size: approx 187x37mm/7.4x1.5in Blueteeth-compatible Temp compensation range: 0 C-60 C/32 F-140 F PH range: 0-14 Accuracy: 0.05PH Note: Please allow 1-3cm error due to manual measurement. pls make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Package includes: 1x Water Quality Tester