Featuring the automatic temperature compensation which will automatically compensate the solution temperature of 0-60, it can provide you the accurate and stable reading. Apply in water sources, soil-free growing, aquarium, hydroponics, laboratory, spas, environment water, swimming pools, water purification systems, etc. Test the COND(Conductivity) / TDS(Total Dissolved Solid) level and temperature(/) of water. Pocket size, lightweight and portable with backlight & large LCD display for clear and easy reading With replaceable sensor probe The electrode probe can be replaced with insert type design for convenient and fast replacement, Manufacturer: CFWWSAQ