Source: System Reference Document 5.0
The text on this page is Open Game Content, and is licensed for public use under the terms of the Open Game License v1.0a.

Classes: Ranger, Wizard

Classification: 1st-level Abjuration (ritual)

Casting Time: 1 minute

Range: 30 feet

Components: V, S, M (a tiny bell and a piece of fine silver wire)

Duration: 8 hours

Saving Throw: None

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.