Device for setting off an avalanche, comprising a support intended to be fixed to the mounting side, for example on a concrete slab, and an enclosure one end of {HEAD ~ which} is open, {TAIL ~ this enclosure} being mounted on the support, said open end of the enclosure being intended to face towards the snow cap 
Device for setting off an avalanche , comprising a support intended to be fixed to the mounting side , for example on a concrete slab , and an enclosure one end of { HEAD ~ which } is open , { TAIL ~ this enclosure } being mounted on the support , said open end of the enclosure being intended to face towards the snow cap
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