The Gefo Coldomat 5257181 antifreeze meter is a reliable diagnostic tool designed for accurately measuring the freezing point of various fluids. It tests ethylene glycol and propylene glycol-based coolants, with a measurement range of -5°C to -50°C. Additionally, it can determine the freezing point of ethanol and isopropyl alcohol-based washer fluids, covering a range from -5°C to -40°C. This meter also measures the density of battery acid, with a range of 1.10 to 1.30 kg/L, ensuring comprehensive fluid health assessment for agricultural, construction, and industrial machinery.