Alarm
1st-level Abjuration
System Reference Document 5.2 (D&D 2024) · Content reviewed 2026-07-11
Alarm is a 1st-level abjuration spell in D&D 5e (2024). You set an alarm against intrusion. Choose a door, a window, or an area within range that is no larger than a 20-foot Cube. Until the spell ends, an alarm alerts you whenever a creature touches or enters the warded area. When you cast the spell, you can…
- Casting Time
- 1 minute
- Range
- 30 feet
- Components
- V, S, M (a bell and silver wire)
- Duration
- 8 hours
- Ritual
- Yes
- Classes
- Ranger, Wizard
You set an alarm against intrusion. Choose a door, a window, or an area within range that is no larger than a 20-foot Cube. Until the spell ends, an alarm alerts you whenever a creature touches or enters the warded area. When you cast the spell, you can designate creatures that won't set off the alarm. You also choose whether the alarm is audible or mental:
Common questions
What level is Alarm?
Alarm is a 1st-level abjuration spell in the 2024 D&D rules.
What is the casting time of Alarm?
Alarm has a casting time of 1 minute, with a range of 30 feet.
Does Alarm require concentration?
No. Alarm does not require concentration.
Roll Alarm straight from your character sheet in The DM Screen.
Open The DM ScreenFree in your browser. No account needed to start.