In case of dangerous situations, an avalanche airbag must be deployed quickly and reliable. You can use the Airbag 3.0 Trigger Test Tool to deploy your airbag without using up a cartridge. The tool lets you familiaize yourself with the airbag system and practice deployment. Sinply screw the tool all the way into the deployment mechanism, put on the backpack, and pull the deployment handle. A clear "snapping" sound indicates sucessful deployment.