function get_nv_sect(slot)
	local nv_obj = db.actor:item_in_slot(slot or 7)

	if not nv_obj then
		return
	end

	local nv_sect
	local ini = system_ini()
	local function get_nv_from_upgrade(sec,itm)
		nv_sect = alun_utils.read_from_ini(ini,sec,"nightvision_section","string")
		if (nv_sect) then
			return nv_sect
		end
	end

   	nv_obj:iterate_installed_upgrades(get_nv_from_upgrade,nv_obj)
	return nv_sect or nil
end