The ATAGO PAL-91S returns a result within seconds from just a few drops of sample. The user places the sample on the prism, presses Start, and the instrument shows the reading digitally in three seconds. Displaying the ethylene glycol ratio and the freezing point at the same time is a significant advantage where checks must be quick.
Suitable for antifreeze fluids, ethylene glycol mixtures, coolants and heat transfer fluids.
Automatic temperature compensation (ATC) maintains accuracy even when the sample temperature changes, which matters particularly for measurements taken outdoors.
Clean the prism with water or a damp cloth after each measurement. Store the instrument in a dry, dust-free place.
The ATAGO 4491 PAL-91S digital refractometer combines professional accuracy in ethylene glycol and freezing point measurement with long battery life and user-friendly design. Built with Japanese engineering, it gives reliable results in coolant analysis, and its IP65 rating stands up to field conditions.
