CTEK Comfort Indicator Clamp is designed and developed to make the maintenance of the battery at the car dealers’ sales hall easy and convenient. Comfort Indicator clamp easily shows the status on the battery and therefore eliminates the risk of selling a car with a flat battery. CTEK Comfort Indicator clamp can prolong the life expectancy of the battery as it makes sure it can always be fully charged and it indicates when the harmful sulfation process begins.