What do you think of this Ultrasound machine?

I'm looking for a reasonably priced ultrasound to check follicular growth in my ball python females. I ran across this ultrasound machine on e-bay for $999 with free shipping. I don't really know anything about ultrasound machines, will this one do the trick? Anything I should watch out for when buying an ultrasound? This is in my price range, not sure I want to spend much more, some of they go for over $5,000!

http://www.ebay.com/itm/USA-FedEx-Po...IAAOSwmmxW3ptQ

I would probably recommend this one(http://www.ebay.com/itm/2017-Digital...item3aeb976c16) This one was recommended to me by someone who was using it. I never got it but if you watch people using ultrasounds on youtube on ball pythons they are all using linear probes vs the convex one on that. I did a best offer on this one for 999.00 and they had accepted. You might be able to talk them down a little more if you research the cost of the probes.

I also work at eBay so if you have any questions feel free to reach out!