The 30A Marinco RV Receptacle Tester detects wiring faults at the pedestal, including open ground, open neutral, open hot, hot/neutral reversed, and hot/ground reversed.• Model No. RRT-30• Power Rating: 30A• Tests open ground, open neutral, open hot, hot/neutral reversed, and hot/ground reversed• Single indicator• Swivel handle for easy removal from pedestal 30A power rating Single test indicator Swivel handle for easy removal from pedestal | Marinco RRT-30 RV Receptacle Tester, 30A