Signal isolators must be used when connecting grounded signal sources to grounded signal followers.

Optical isolators are optical devices that allow light to be transmitted in only one direction.

Vibration isolators and machine mounts are used to mount and/or level machines, motors, appliances and other devices that require leveling, vibration dampening, or load distribution

RF isolators and RF circulators are passive devices used to control the propagation of an RF signal

Bearing isolators are dynamic seals designed to protect bearings from outside contaminants.

RF waveguide isolators and circulators permit a signal to pass in one direction while providing high isolation to reflected energy in the reverse direction.

GPIB expanders allow the system to interface with more than the maximum number of devices specified in IEEE 488.