Features: This 10 in 1 Water Quality Meter is a must-get for aquarium enthusiasts and water quality professionals alike. With its large screen display, highprecision probes, automatic temperature compensation, and 10 multifunctional tests, this meter is the tool for measuring pH, TDS, ORP, Fertility, SALT, and temperature. Whether you're a hydroponics hobbyist, laboratory technician, or simply concerned about the safety of your drinking water, this water quality tester is perfect for you From testing the salinity of your swimming pool to ensuring the fertility of your crop, this water quality meter is suitable for wide ranges of applications. Keep water safety and healthy with this reliable and simple-to-use 10 in 1 Water Quality Meter. Specifications: Material: plastic Length: approx 185mm/7inch Battery: 3x1.5V LR44 Package Includes: 1xWater Quality Meter note: Please allow 1 to 3cm error due to manual measurement, please 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.