You Do Need power plug adapter while traveling from Canary Islands to Senegal.

Here is Why You Need An Adapter

The outlet and plug type used in Senegal are C, D, E and K and in Canary Islands are C, E and F. This is how they look like.

Canary Islands

In Canary Islands, outlets of type C, E and F are in use.

Type C

Type E

Type F

Senegal

In Senegal, outlets of type C, D, E and K are in use.

Type C

Type D

Type E

Type K