Jonathan Mitchell says he jumped at the chance to join Rovers after leaving Hartlepool United earlier this month.
The goalkeeper has made 100 career appearances and joins on an 18-month contract.
“I left Hartlepool earlier this month and I heard there was a bit of interest. I spoke to the gaffer and jumped at the chance to join,” he said.
“The conversations have been really positive and I think the gaffer wants to change a few things.
“Obviously, we’re not in a great position at the minute, but he has a plan and a real belief that we can push on.”
Louis Jones recently reclaimed the No.1 spot and Mitchell joins to provide competition for the position.
“First and foremost, Louis and I both want to be playing,” he added.
“It will be a healthy rivalry and I’ve had that wherever I’ve been and I feel like we can better each other.
“I’ve seen in training the potential that he has and I’m sure we’ll push each other on.
“Sometimes, being a goalkeeper is almost like a team within a team – the unfortunate part is only one can play.”