Related Clues:
- Common cell phone feature
- Loud get-up?
- Reason to get up in the morning?
- Electric eye, for one
- Break-in indicator
- Surprise big-time
- Rousing ringer
- Security device
- Car antitheft device
- Detection device
- Clock signal
- Security system component
- Home security component
- Word with ''smoke'' or ''fire''
- Waker-upper