All the hardware is provided on a rental basis for the duration of the tuning exercise and must be returned once the tune is complete.
If you are after hardware, the Tactrix can be purchased at
Tactrix and the MTX-L wideband can be found on ebay
INNOVATE MTX-L AFR Wideband Air/Fuel Ratio Gauge 3844 | eBay
The Tactrix is $169 US and the MTX-L is around $205, which means the rental is a very cost effective way to get your tune installed and customized.