Alarm

A
Utility

Alarm is a Utility spell. Utility spells solve problems outside of combat or provide unique situational advantages.

See all Utility spells →
spell that wards a door, window, or small area, alerting you to intruders with a bell or mental ping and
intruder alerts

Alarm is a Information spell. Information spells provide ways to transmit, perceive, detect, or reveal hidden or unknown information.

See all Information spells →
.

2024 Rules

Level & School
1st-level abjuration
Casting Time
1 minute or Ritual
Range
30 feet
Components
V, S, M (a bell and silver wire)
Duration
8 hours
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:

Audible Alarm. The alarm produces the sound of a handbell for 10 seconds within 60 feet of the warded area.

Mental Alarm. You are alerted by a mental ping if you are within 1 mile of the warded area. This ping awakens you if you're asleep.

2014 Rules

Level & School
1st-level abjuration
Casting Time
1 minute
Range
30 feet
Components
V, S, M (a tiny bell and a piece of fine silver wire)
Duration
8 hours
Classes
Ranger, Wizard

You set an alarm against unwanted 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 Tiny or larger 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 mental or audible.

A mental alarm alerts you with a ping in your mind if you are within 1 mile of the warded area. This ping awakens you if you are sleeping.

An audible alarm produces the sound of a hand bell for 10 seconds within 60 feet.

Alarm 5.5e 2024 vs. 5e 2014 edition differences

Alarm now has the Ritual tag. It also no longer limits the trigger to Tiny or larger creatures, so any creature touching or entering the warded area can set it off.

Alarm popularity

How popular is Alarm? It is a commonly found spell in the game, and is often chosen over other options when available. This spell is a reliable addition to any spellbook.

Spells similar to Alarm