Vintage Superior Instruments Electronic Utility Tester Model UT-50

Vintage Maxon Electronics INC Model 200 Utility Tester w/ Cords & Manual

INTERTEK Circuit Breaker Finder And GFCI Socket Tester 110-125V 0.5W 50-60Hz

Vintage Superior Instruments Electronic Tester Model UT-50 Custom Case Ohm Meter

Scarce Micro Match M.C. Jones Electronics Co. Connector Model No. MM5768

Kyoritsu Japan Earth Tester Model 4102

UNI-T UT25A Digital Circuit Breaker Finder with GFCI Outlet Socket Tester LED