Bally Technologies is fortifying its revenue stream through sales of its iView slot machine device.
The device, which can be embedded in any slot machine, allows casinos to market to consumers and track their activity through frequent-player cards.
It looks like a little screen below the slot machine terminal.
Last month, Bally announced three agreements to place its iView systems at casinos from San Diego to Connecticut.
The deals cover some 12,200 slot machines.
Last week, the company announced another 12,000 slot machines will use iView at Pinnacle Entertainment's new casino to open this year in St. Louis.
That came after its April announcement of an agreement to put iView on 16,000 slot machines at casinos developed by Las Vegas Sands in Las Vegas, Macau and Singapore.