Related Clues:
- Gauge of heat or light, e.g.
- Leadfoot's nemesis
- Gun at a ball game
- Air-traffic aid
- Electric eye, for one
- "M*A*S*H" character with great hearing
- 'M*A*S*H*' palindrome
- Speed gauge
- Aircraft equipment
- Security device
- Gun in a dugout
- Air-traffic detector
- Defense mechanism?
- Airplane tracker
- Detection device