Test gasoline fuel pump pressure on most domestic and imported fuel injection equipped vehicles Easy to hook up and read Includes 2 gages for more accurate testing Large gage is calibrated from 0-100 PSI (0-7.0 BAR) Small gage is calibrated from 0-50 PSI (0-3.5 BAR)Kit contains everything to test all GM vehicles with multi-port and some throttle body injection (TBI). Test all Chrysler cars with multi-port turbos and some TBI. Use on most Ford TBI systems equipped with or without small Schrader test valve. Test all Ford vehicles with multi-port fuel injection systems. Large gage can be used for all applications and has hang-up hook.Small gage provides more detail when pressure will not exceed 50 PSI (0-3.5 BAR). Full instructions included. Supplied in durable, plastic molded storage case with carrying handle. Case measures 11-1/4" x 7-1/2" x 3" and has ample space for additional adapters and parts.