Clairvoyance

3rd-Level Divination
Casting Time: 1 action
Range: 1 mile
Components: VSM($) (a focus worth at least 100 gp, either a jeweled horn for hearing or a glass eye for seeing)
Duration: (C) 1 hour

You create an invisible sensor within range in a location familiar to you (a place you have visited or seen before) or in an obvious location that is unfamiliar to you (such as behind a door, around a corner, or in a grove of trees). The sensor cannot be attacked or otherwise interacted with, though it can be dispelled.
When you cast the spell, you choose seeing or hearing. You can mentally receive sensory information from the chosen sense as if you were in its space, and the sensor can look in every direction. It has normal vision. As an Action, you can switch between seeing and hearing.
In addition, as an Action you can move the sensor 30 feet in any direction. There is no limit to how far away from you the sensor can move, but it can't enter another plane of existence. A solid barrier blocks the sensor's movement, but the sensor can pass through an opening as small as 1 inch in diameter.
A creature that can see the sensor (such as a creature benefitting from truesight) sees a luminous, intangible orb about the size of a fist.
At Higher Levels. When you cast this spell using a spell slot of 5th level or higher, the duration is concentration up to 1 hour, and the sensor gains darkvision out to a range of 60 feet. When you cast this spell using a spell slot of 7th level or higher, the duration is 24 hours and no longer requires concentration. When you cast this spell using a spell slot of 9th level or higher, the spell lasts until dispelled. As an Action, you can receive sensory information from any of your sensors, or continue to move them, as long as you have access to the material component, but can only focus on one at a time.

Source: PHB 222, SRD

Changelog