The unit shuts itself off if the battery voltage falls beneath a certain threshold value, in order to prevent completely draining the batteries and possibly damaging circuit components.

A further quality feature is the all-metal housing, which is unbreakable and protects against radiated electromagnetic interference.

For increased ease of use, the lettering on the back panel is printed upside down relative to the front panel, so that it is unnecessary to turn the unit around in order to read the labeling.
The VMS 5 U with its universal power supply capability and compact dimensions is equally well suited for portable or fixed operation.

A set of batteries is included with the unit.
Available separately: AC power adapter VMS 5 DC-W,
a high-quality off-line switching power supply for 90 – 264 Volt AC.

VMS 5 DC-W switching power supply