Knopp Model K-3 Phase Sequence Indicator, used for testing 60 and 600 volts AC.

Greenlee 5124 Phase Sequence and Motor Rotation Meter Test Indicator

Greenlee Phase Sequence Indicator & Phase rotation tester With case-excellent

Fluke 9040 3 Phase Rotation Indicator No Battery Required Like New Tested + Case

ETCR1000C AC 70-1000V Phase Detector Non-Contact Phase Sequence Tester Indicator

New Fluke 9040 Digital Phase Rotation Indicator / Tester / Meter

ETCON PS-720 PHASE SEQUENCE INDICATOR Unused

SM852B 3 Phase Sequence Rotation Tester LED Indicator Detector Checker Meter