1-channel isolated barrier, 24 V DC supply (Power Rail), Level sensing input, Adjustable range 1 k? ... 150 k?, Relay contact output, Fault relay contact output, Adjustable time delay up to 10 s, Minimum/maximum control, Line fault detection (LFD), Housing width: 20 mm, Number of channels: 1-channel, Conductivity measurement, Min./max. control, Time delay, Rated voltage: 20 ... 30 V DC, Signal: Resistance, Line fault detection, Type: 2 x relay (change-over contact), Fault indication output