Trying to make an inexpensive wideband display, Apexi Turbo Timer and Bosch a/f

[POS carb]

Trying to make a wideband a/f display on my car.
A co-worker told me that the Apexi Turbo Timer has an a/f display so I ordered it.
I am looking at the directions online (don't have the part yet) and it looks like it accepts a wideband input but I don't think it has a controller.

1. Anyone know if it has a controller?
APEXI Turbo Timer NA Turbo Black Control Blue LED New Pen Size Free SHIP FedEx | eBay (http://www.ebay.com/itm/APEXI-TURBO-TIMER-NA-TURBO-Black-Control-BLUE-LED-NEW-Pen-Size-Free-Ship-FEDEX-/110998870479?pt=Motors_Car_Truck_Parts_Accessories&hash=item19d80c59cf&vxp=mtr)

2. if no controller, what is a cheap alternative for a controller.

Thanks!~

[POS carb]

OK this thing definitely does not have a wideband controller.
I ran across 14Point7 (http://www.14point7.com/) and they list a controller called the "SLC OEM"
it's $70, so far the cheapest controller I could find.
It looks like a piggyback board for a megasquirt or something.

I found a wiring diagram for it online
http://s017.radikal.ru/i426/1112/a7/ff6f6a3081b4.jpg
SLC OEM wiring. (http://14point7.com/forum/index.php?topic=2722.0)

Looks like all I would need is a steady 5v source, you think a usb adapter would work well as a power source for this?