Dent PS3P-US PowerScout3 Three Phase Power Metering Transducer - US VersionModel Update: Dent has extended the warranty on this unit out from the standard one year warranty to a 5 year extended warranty. "We now have extensive statistics proving the reliability of the PowerScout series of instruments. Even after years of service, these dependable instruments rarely come back to the factory for warranty issues. Therefore, effective immediately, the PowerScout 3 Plus and PowerScout 18 warranty term will be extended to 5 years.