VIBROCONTROL 1100 (VC-1100) has been in use for many decades and in very many applications for 2-channel measurement and monitoring of absolute bearing vibrations and rolling-element bearing condition using a standard acceleration sensor.
Its successor is VIBROCONTROL 1850 which comes with much more functionality and four measurement channels; it is mounted on a DIN rail and a field housing is available optionally (AC-2114). Another alternative is VIBROCONTROL 6000® Compact monitor which is also available in a protective housing (AC-2112).