I just picked up a sun tester on the weekend at hershey for $10 with the instructions. there is 2 mini jumper cable ends (red & black) they hook up to the battery to supply power to the unit, there is another smaller set for checking voltages, ohms. i think the green was for the distributer for the dwell and points check. and it also has i built in shunt bar for checking starter draw up to 500 amps. There is also an inductive clip for measuring the HV off the coil.
