Features: • Measures conductivity EC, PPM (500), PPM (700) and temperature • Premium probe technologies and materials ensure high accuracy and durability with minimal maintenance • Titanium alloy sensor designed for high accuracy EC measurement • Easy-to-use design and fast calibration adjustment. • Large 3-color backlit screen gives you clear information • IP67 waterproof rating • Replaceable probe • Powered by AAA batteries with auto off function • Automatic temperature compensation