If your theatre's lighting system has 20 amp stage pin connectors, you shouldn't be without this 3-in-1 tester from Great American Market.

GAMCHEK 3-in-1 electrical tester:

• Cable test monitors line continuity, shows completed circuits.
• Lamp test indicates the lamp and fixture continuity
• Circuit tester checks if power is available, if polarity is correct, if wiring is correct.
• Controls and LED indicators recessed in ergonomic case. Battery included.

The compact housing is equipped with 20 amp male and female stage pin connectors. Also available in PBG and Twistlock versions by special order.