Portable device with RFID LifeCheck sensor for flexible use. For quick and easy testing of arresters with RFID LifeCheck. Equipped with optical and acoustic display. Also equipped with USB port and PC database software for PC-supported management of the test items and documentation of the test results. The DRC LC M3+ is equipped with an RFID LifeCheck sensor with snap-on function. The handheld device also supports the parameterization of the arresters for condition monitoring.