Quickly the coolant tester to quickly understand the coolant The transparent contains sensitive pointers, which can measure the solidification point and boiling point of the liquid at the temperatures of Celsius and Efficacy: suitable for winter and use, which helps to avoid freezing or overheating : high-precision, easy-to-read scale and pointer It is calibrated under°C and °F to facilitate testing The freezing point can cold and the boiling point can Applications: this density meter is suitable for testing hot or cold batteries on 6-volt and 12-volt systems Easy to use, simple to operate, light and to carry is a practical tool for accurately detecting antifreeze Durability: the antifreeze tester adopts plastics and rubber materials to easily the freezing and boiling temperature of the coolant in aqueous solution; large rubber balls and rubber pipes can easily inhale liquids into small containers, Manufacturer: Msioytog