COMPASS Coolant Hydrometer

We present to you a high-quality glass density meter with balloon, suction tube and internal float. It is designed to measure the coolant of your car. Working with it is very fast and simple as it is incredibly easy to handle. With this meter you can measure liquids based on glycol as well as methanol based coolants.

Measurement of the liquid is done very simply by sucking the coolant into the glass tube. Reading the float values determines the temperature (in degrees Celsius) at which the measured liquid freezes.