  We study bounds on a neutral component of weak doublet scalar lepton. A
typical example of such particle is sneutrinos in supersymmetric models. Using
constraints from invisible Higgs decays we place a lower bound of approximately
$m_h/2$. We recast a mono-$W/Z$ search, with hadronic vector boson tag in order
to bound parameter space in the sneutrino--charged slepton mass plane. We find
a lower bound on sneutrinos in the range of 55-100 GeV in the 36
$\text{fb}^{-1}$ data set depending on the mass of charged component. We
propose a sensitivity search in the hadronic mono-$W/Z$ channel for HL-LHC and
discuss both the discovery potential in case an excess is seen and exclusion
limit assuming no excess is seen.
