ARKSEN Radiator Cap Coolant Pressure Tester, Universal, w/Carrying Case Domestic & Import - Includes 8 radiator cap adapters for servicing most domestic and import vehicles Coolant Thermomter - Track coolant temperture directly from the coolant for accurate readings Safe & Secure - Self-locking quick-disconnect components ensure secure attachment installation and easy removal 36 PSI - Tests automotive pressurized cooling systems up to 35 PSI Blow Molded Carrying Case - Blow molded case keeps the testing kit organized and portable