Related Clues:
- M.A.S.H. character; electronic range detector
- A help in locating girl in a car?
- Remote sensing system
- Remote detection device
- Locator of plane travelling there and back
- Electronic rangefinder
- Electronic tracker
- Has a beam moving up and down
- Device warning of, eg, smoke
- Pulsed location-finder
- Ranging system
- Kind of screen that's reversible
- Rangefinder
- What shows range of drama school and its head
- Pulse detection system