I have a Turbo Dyno 45 which has been calibrated and works great, just no need for so many of them or else I would keep it, but I already have 3 others that sit in a box as backups now.
Also comes with some used motors to mess with, HP Printer and extra rolls of paper.
Pics are on my site at
www.axiommotors.com and is in the used stuff section, you can also just purchase right there using paypal, CC's etc.