LOL, don't jump at conclusions, i never said that this
IS a gen 2 device, i only said that this
LOOK as a gen 2 device that i tried once, also if it have some differences (that one was an ATN MO4-3 unit, sold as gen 3, but in reality was a simple gen 2+ unit).....
Other than this, please consider that i'm not a nightvision devices expert ..... i only repaired a pair of them, and have a hoby level interest in them .....
It was better if in that auction there was some more informations, about the tube, for understand what exactly it is in reality ..... but, also if i can't read German too correctly, i see that the more interesting informations are absent ..... like, just as example ..... cathode type ? (alkali-cds, multi-alkali, thick GaAs, thin GaAs, layerless, autogated), tube type ? (ATN, ATNS, CGT, HTP, ITT/Pinnacle, 2IA, 3I, 3N, other), intensifier device (photodrive, microchannels plate, others), and so on ..... instead i only read "Omni 7", that if i recall correctly, was a device using a gen 2+ GaAs thick layer cathode type tube ..... but i can be wrong, in this, so if this one use an ATNS or 3I / 3N tube with filmless GaAs cathode and autogated power system, then it can be a gen 3 .....
Also, please consider that, for the market and sale purpose, there are a lot of producers that
erroneously state theyr devices in the wrong class ..... as example, anyone know gen 1 (converters and 100X enhancers, that still need IR light source), and almost anyone knows gen 2 (converters and 1000X enhancers, that can work with ambient light near 0,1 lux, but not in the total darkness), but not all the peoples knows that gen 2 have more than one class, and that some producers have always sold their gen 2+ and 2T devices as gen 3 (gen 3 can work in absolute darkness using thermal differences, and can enhance 10000X the background light, as example, and usually don't require nor integrate any IR illuminator) .....
and there are producers that still claim that they are selling gen 4 to the public !!! 
..... a "gen 4" tube is a FLIR camera connected to a DSP unit, with an output on a screen, not a nightvision device, but they insist that they are selling gen 4 nightvision monoculars !!
Ofcourse this is not seller guilty, if he have buyed it as "gen 3" in good faith, as a lot of other peoples have done ..... the fault is from the original producer, in this case ..... only, if some more technical informations was available, can say you something better ..... also cause, as far as i remember, i never seen a "real" gen 3 unit for less than 10.000 $ of cost .....
EDIT: corrected wrong values, sorry for the typos
