This hand-held tester is for Ford and KW band Ignition Coils
It is more than a continuity tester, it is a quick means of testing the high voltage secondary winding, if it does not "beep" the secondary winding is unusable and considered a ""fatal"" fault within the coil that cannot be practically fixed.
Simply align the “Beeper” tester electrodes with the coil side terminals of the T coil and press firmly to test the coil.
Simple battery powered tester will test thousands of coils
Pays for itself at swap meets when buying coils for rebuilding
NOT simply a continuity checker
A "must" for coil rebuilders