Wands, UMD and caster level

[Hayato Ken]

Can i emulate a higher caster level with UMD?
Or are wands always on the lowest possible spell level and if i want them higher i have to buy a higher spell level wand?

[Weables]

Wands by default are created at a lower caster level. this is a function of your wand, not the UMD skill. Higher caster level wands are possible, and the formula for having them crafted is available.

[Shar Tahl]

Like was stated above, wands have a static caster level. you are pretty much already emulating a caster level of 1 in the class that has that spell on its list.

[Alitan]

Caster level is not a class feature; it's a measure of attainment that modifies many class features, like spellcasting, but you can't emulate a particular caster level with UMD.