It has not been tested, but appears to be complete and in working order so it is being sold AS IS.
Vintage 1940's SUN ELECTRIC CORP BATTERY STARTER-TESTER Model C 29313
Working Sun Electric Corp Transistor Regulator Tester Model TRT-12 With 4 Leads
Sun Electric Corp. DIL 300 Vehicle Tester Diagnose Tester
Vintage Engine Compression Tester Perfect Instrument Corp. Los Angeles CA
0-300PSI Engine Cylinder Compression Gauge Tester Kit Engine Compression Tester
