KEW4140• Anti-Trip Technology for complete trip free Loop testing on all RCDs rated 30mA and above.• Dual Display allows simultaneous measurements like Loop & PFC/PSC.• Two wire connection for Loop L-L, L-N and PSC testing is possible.• Phase rotation, Voltage and Frequency measurements.• Lock-down test button for ‘hands free’ testing with auto-start operation.• Display and front panel keyboards with Backlight to be visible in dark places.• Water and Dust proof (IP54)