  The Multipurpose Detector (MPD) consists of a typical array of sub-detectors
to study the nuclear matter originating from the collisions of beams provided
by the Nuclotron-based Ion Collider fAcility (NICA). A beam monitoring
detector~(BeBe) is proposed for stage 2 of MPD to increase the trigger
capabilities. BeBe is constituted of two plastic scintillator disks segmented
in 80 cells $\pm~2~m$ away from the interaction point of MPD. Laboratory
measurements to obtain the energy resolution of an individual BeBe cell
prototype are presented. It is shown that an energy resolution of $22\pm6\%$
can be obtained. Based on Monte Carlo simulations, the trigger efficiencies of
the BeBe are presented for p+p collisions at 11~GeV considering a threshold in
the energy loss of the charged particles reaching the detector.
