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.
The successor models VIBROCONTROL 1850 (for connecting vibration acceleration sensors for measuring and monitoring vibration acceleration and vibration velocity) and VIBROCONTROL 1860 (for connecting vibration velocity sensors type VS for measuring and monitoring vibration velocity) have significantly more functionality and four measuring channels; they are mounted on a DIN rail and are optionally available with a field housing (AC-2114).
Another alternative is VIBROCONTROL 6000® Compact monitor which is also available in a  protective housing (AC-2112).
For your convenience, the documentation of VIBROCONTROL 1100 is listed below.