Tests modern propylene glycol coolant antifreeze, hot or cold. Freeze protection level is indicated by the number of the five large coloured discs which float in the sample. Easy to read temperature table on the virtually unbreakable plastic body.
Tests modern propylene glycol coolant antifreeze, hot or cold. Freeze protection level is indicated by the number of the five large coloured discs which float in the sample. Easy to read temperature table on the virtually unbreakable plastic body.