Easy access for viewing those 'hard to get' to batteries, the CTEK Comfort Indicator Panel is designed and developed to make the maintenance of the battery in the vehicle easy and convenient. The Comfort Indicator Panel easily shows the status on the battery and makes sure that the battery can always get the care it needs. It is perfectly suited in the standard panel on the vehicle. CTEK Comfort Indicator Panel 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. CTEK Comfort Indicator Panel is designed to fit US 800, US 0. 8, MULTI US 3300, Multi US 4. 3, 4. 3 Test & Charge, 4. 3 Polar, MXS 5. 0, CT5 Time To Go and MULTI US 7002 battery chargers.