  We present a full-size engineering model of GALI - The GAmma-ray burst
Localizing Instrument, composed of 362 CsI(Tl) small cubic scintillators,
distributed within a small volume of $\sim2$l, and read out by silicon
photo-multipliers. GALI can provide directional information about GRBs with
high angular accuracy from angle-dependent mutual obstruction between its
scintillators. Here, we demonstrate GALI's laboratory experiments with an
$^{241}$Am source, which achieved directional reconstruction of $<$3$^\circ$
accuracy, in agreement with our Monte-Carlo simulations. GALI has a wide field
view of the unobstructed sky. With its current cubic configuration, GALI's
effective area varies between 97 cm$^2$ (face on) and 138 cm$^2$ (from the
corners at 45$^\circ$), which is verified in the current experiment.
