Planet Exactone Tuning Gauge for Ludwig Universal Timpani - Back in Stock June 2026The Planet Gauge is Falls Music Cos proprietary and patented timpani tuning gauge for accurate tuning and durability. The gauges are simple to install and are located directly in front of the player for easy visibility. We also offer a custom protective gauge cover that clips on easily to prevent tampering. On this model, the initial set up requires removal of the drum head to install mounting hardware on the shell of the timpani. Drilling may be