| 摘要 |
An adaptor for use with an indicator device, comprising a ring-shaped element having an inner circumference for attaching to the indicator device and an outer circumference for grasping by the user in order to manipulate the indicator device. The inner circumference has an upper radial lip and lower radial lip that maintain the indicator device therebetween, and the outer circumference may have grasping-enhancing elements such as a set of circumferential knobs. |
