Features： 1、High Quality Materials: Anti freeze tester is made of high quality rubber and ABS material, wear resistant and durable. 2、Function: Automotive antifreeze tester is designed to easily test freezing and boiling temperatures of your coolant to water solutions, fast and accurate. 3、Clear Glass Pipe: Clear glass pipe allows you to inspect the condition of the antifreeze, easily inspect color, any rust, sludge, or other sediments. 4、High Accuracy: Easy to read with scale and pointer. Calibrated in ℃ and ℉, measures freezing point for winter protecting and boiling point for summer protecting. 5、Application: Anti freeze coolant tester is suitable for testing hot or cold batteries on 6 and 12 Volt systems. Specification： Item Type: Anti Freeze Coolant Tester Material: Rubber+ABS Fitment: Fit for 6V and 12V batteries Package List： 1 x Anti Freeze Coolant Tester