Digital RCD Testers for testing residual current devices, trip current and trip time in electrical installations. A Digital RCD Tester is used to verify the operation of Residual Current Devices in electrical installations. It helps technicians check whether protective devices operate correctly under simulated leakage conditions. #DigitalRCDTester #RCDTester #RCDTesting #ResidualCurrentDevice #ElectricalSafety #ElectricalTesting #Kyoritsu #IndustrialTesting #AAGAMCorporation