The former Aldershot Town and Torquay frontman has been added to the new-comers’ frontline.
The Southern League champions need the big forward to fill the goal gap left by Brandon Goodship.
The top scorer earned a move to Southend United last month and they have worked hard sourcing a replacement.
Director of Football Paul Maitland told the club’s website: “With Brandon leaving for Southend, we had an idea of what we wanted to do.
“Brett has a proven track record at National League level, he’s played most of his career at that level so he brings good experience with him.
“We go a little bit into the unknown in this new league for us so it’s important to have someone with that level of experience.”