Does anybody make a 2" horizon with an internal battery backup?

[peter-h]

This is not for light GA, and the cost is irrelevant

This is the kind of thing but with a built-in battery if possible.

 

[tmyers]

I think L3 makes a nice unit.

 

[AggieMike88]

Mid Continent Instruments

http://www.mcico.com/Electric_Attitude_Indicator-CN1E3E83269552.html?MN=1323C02EA3C9

 

[Art VanDelay]

We used to have those on Boeings but now we just have one tiny EFIS version that functions as a little MFD.