Features: 5-in-1 water quality tester measure pH / TDS / EC / Temperature and Salinity of your liquid sample in one handy unit. PH tester has a backlight LCD that helps you clearly see the measurement in any for case. Accurate real-time BT data transmission and clear measured values make it easy for you to save, manage and share test data without worrying about data loss. Pocket Size PH Meter is the for ideal test kit for home and laboratory uses. for Ideal use to test for water, pools, aquariums, spas, hydroponics and more. Digital PH Meter for water hydroponics has an even better range of 0 °C-60 °C (32 °F-140 °F), automatic temperature compensation. Specifications: Material: ABS Size: approx 187x37mm/7.4x1.5in Temp compensation range: 0 °C-60 °C/32 °F-140 °F PH range: 0-14 Accuracy: ±0.05PH Package Includes: 1x Water Quality Tester 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.