Related Clues:

• Morning noise
• Chili heat unit
• Thermometer, e.g.
• Car noise?
• Frequent morning surprise
• Chili rating unit
• Break-in deterrent
• Warning of a sort
• Screamer at a crime scene
• Klaxon
• High-tech detector
• Security warning
• Fire station signal
• Wail that warns
• Siren, for one