Features: Harness solar energy for user friendly power with this multifunctional water quality tester, accurately measuring salinity and temperature in marine, aquaculture, and reservoirs environment. Crafted with solid ABS material and weighing only 300g, this delicate device combines corrosion resistance with easy portability for reliable fields use. Essential for marine biologists, aquaculture operators, and outdoor enthusiasts needing quick water analysis without technical expertise. Monitor saltwater pools, water ecosystems, or fish farm conditions effortlessly during expeditions, fields research, or routine maintenance check. Features button operation and IP67 waterproof casing, delivering professional grades accuracy in harsh outdoor conditions for sustainable environmental monitoring. Specifications: Material: ABS Size:Approx.20x13cm/7.87x5.11inches Package Includes: 1Pc Solar Salinity Temperature Water Quality Detectors note: Please allow 1 to 3cm error due to manual measurement, please make sure you do not mind before you bid, Due to the differences between different monitors, the picture may not reflect the actual colorful of the item.