Allen Bradley 440R-S845AER-NNL Speed Monitoring Safety Relay

Relay, GuardMaster, Specialty Safety, MSR57P, Safe Speed and Standstill Monitor, 24 Volt DC, 5 x 1 Normally Closed, 2 Normally Closed LC, 1 Normally Open, 1 Normally Closed, Inputs, 6 Normally Open, Solid State, Safety Outputs, 4 Normally Open, Solid State, Auxiliary Outputs, Removable Terminals, Automatic/Manual or Manual Monitored Reset