Brand: Dold Item: Safety relay extension module Connection: Pluggable screw terminals Number Of Channels: 2 Safety Output Type: (2) N.O. Monitoring Output Type: (1) N.C. Control Voltage: 24 VDC Dold safety relay extension module, 2-channel, 24 VDC, (2) N.O. safety output(s), (1) N.C. monitoring output(s), pluggable screw terminals.