The latest incarnation of the Thingometer! As worn at Euchronia - the ALTV Steampunk New Years Eve party in Melbourne.
This device is worn strapped to a leg for hands free operation, and to give the user the greatest possible dexterity for ripping it off and tossing it should it decide to explode. For Euchronia, it was attached to a Corset Inspector device (early incarnation documented [link] - it has since been upgraded)