【Fast and Efficient】Measuring salinity has never been so fast. Our digital salinity refractometer provides results in just 3 seconds, saving you valuable time. whether you are conducting field research or working in the laboratory. 【Accurate and reliable】This digital salt water tester uses advanced sensing technology to provide accurate and reliable results. It is not afraid of scalding at high temperatures and can measure high temperatures. It will not be damaged under normal use. 【User-friendly interface】Our portable salinity tester has easy-to-use function keys for easy operation. Simply press the key to turn on the device and enter the waiting measurement interface. automatic shutdown time setting and backlight on/off setting. 【Easy to use】The salinity tester has an LCD window status display. When it is ready to test, when the battery is low, and when the display is in the test, it will flash. The numerical display is clear and clear at a glance. 【Compact and portable】This tester has a beautiful appearance design and ergonomics. It is lightweight and portable, allowing you to easily carry it wherever you go. Whether you are traveling for work or using it at home, the salinity tester is your perfect companion.