Accessories Kestrel w/ Applied ballistics

[Yippeekiay]

Got this in a trade. Not sure which model it is. Home screen says ISS 4.92. Comes with the case. Not really tech savvy so this is just sitting on the shelf. Tried connecting to my Vortex lrf 4000 but it just got too complicated. Honestly I don't think it's possible. As a stand alone it'd work great I'm sure. Any questions I can try to answer.
$350 shipped.
If I'm off in price p.m. and we can talk.
Thanks

 

[Crypt_keeper]

Looks to be a 4500

 

[Yippeekiay]

Thanks..
Quick search and it's discontinued.
Price drop $200 shipped

 

[Yippeekiay]

$150 shipped..