This doesn't look like a Teltonika code, but based on Google searched this looks like an older version of mobile antennas sold by Teltonika. We doesn't sell these anymore, but this one is similar. All Teltonika-Networks product accessories can be found here.
Regarding orders, you need to get in touch with a sales manager from Teltonika-Networks. You can go to our website and click the "CONTACT US" button in the bottom-right side of the page.