1MAIN FUNCTION: Multifunction water quality detector, mainly used to measure the salinity and temperature of the solution and water, which is easy to operate and use. 2MEASUREMENT RANGE: The temperature measurement range is 0100, salinity measurement range is 0199.9ppt, widely used in aquariums, swimming pools, laboratories, aquaculture, etc. 3HIGH QUALITY MATERIALS: Made of high quality ABS materials, strong and durable, corrosion resistant, providing fast and accurate measurements. 4ANTI SLIP AND EASY TO HOLD: Salinity temperature tester with frosted cover and function keys, anti slip and comfortable to hold, accurate and convenient measurement. 5BACKLIGHT FUNCTION: With a backlit display, easy to read, clear and intuitive display of measurement results, does not affect the use in the dark.1 x Meter (Battery Not Included)1 x Probe1 x Test Needle1 x Modulation Tool1 x Manual