1. High Quality Materials: Anti freeze tester is made of high quality rubber material, wear and . 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 for summer protecting. 5. Application: Anti freeze coolant tester is suitable for testing hot or cold batteries on 6 and 12 Volt systems. Item Type: Anti Freeze Coolant Tester Fitment: Fit for 6V and 12V batteries Color: As Shown Material: Glass + Rubber Package Contents: 1 x Cooling tester Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.