LUN 11478 Variometer?

Is anyone familiar with this variometer?
I am shopping for some variometers for our club gliders and Avio
Service of Bulgaria offered these and the VR10 from PZL.
I can´t find anything on internet but maybe someone with a LAK/ SZD/
LET/ IAR glider has one.
Any comments would be greatly appreciated.

I´m looking for at least three mechanical and two or three electric,
+-5 m/s end of scale. Nothing fancy, just simple and reliable for club
use. Preferably new but used in good working order is OK.
Anybody upgrading their panel and has some varios for sale?

Regards,

Juan Carlos

Try http://www.mikrotechna.cz/html/varios.htm for information about
current production of variometers.

Regards,
Niels