Martins has finally been granted a visa and the former Newcastle player is set to make his debut in Saturday's home clash with Stoke.
Looking forward: Cameron Jerome in action for Birmingham against West Ham last weekend
Jerome feels the Nigeria international will give Blues 'an extra dimension' as they look to find the goal power which has proved elusive this season.
New man: Obafemi Martins has joined Birmingham from Newcastle
He said: 'Obafemi has played in the Premier League before and is aninternational player so he will add something different, a newdimension to our strike force.
'He is not one who has got to come in and find his feet in the Premier League.
'He knows how to play and, from what we have seen of him before at Newcastle, he seems to be a very explosive player.
'That is what we need at the moment. We need that extra dimension up front.
'Hopefully he can come in and settle quickly and we can make best use of him from now to the end of the season.'
Jerome added: 'I'm looking forward to playing with someone like it was last year with myself and Christian Benitez.
'We caused defences headaches, we terrorised defences.
'Martins is of that calibre, that explosive player, that jack in the box, and hopefully he can good for us.'
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Explore more:People: Christian Benitez, Obafemi Martins Places: Birmingham, Newcastle, Nigeria