Comparison between L_acc(Brγ) and L_acc  determinations from the other four tracers and between L_acc(Hα) and L_acc  from [O i]  and Ca ii. The red circles and blue squares refer to Cha I and Cha II objects, respectively, whereas the triangles of the same colours indicate upper limits. The dashed lines mark the locus of equal accretion luminosity. The symbols filled with a black dot identify the sources displaying low values of the Paβ/Brγ  ratio (see Sect. 8 and Fig. 7).