This indicating vibration transmitter and signal conditioner in a single package built to provide years of reliable service. The ST5491E is the ideal solution for sensing vibration on most plant equipment. A simple two-wire loop signal proportional to velocity is generated for transfer to a programmable logic controller (PLC), distributed control system (DCS) or other 4-20 mA input devices. Simply mount the transmitter on the machine case, connect the 2-wire loop and read and/or record the vibration. Each transmitter is manufactured the way you want it: one of 3 electrical connections, epoxy or hermetically sealed, mounting stud, frequency range, full scale output and level of certification