This reusable tester helps to check the quality of the coolant. The device is easy to use - even for a non-professional car owner such a device will seem simple. To conduct the test, you only need to dip the indicator strip into a container with the analyzed liquid. Depending on the reaction, you can determine the suitability of antifreeze. Green color will indicate the norm, yellow - that it is time to add a fresh portion of antifreeze, and red - that a complete replacement is required. In this way, the tester will save on costly repairs to the cooling system by detecting problems in good time.