slightly OT: wall mount UPS for demarc

[Peter Pauly <ppauly () gmail com>]

I'm looking to buy several small wall mounted UPS's to power a telco's
metro ethernet switches. (Yes, they should have provided some kind of
protection, but won't).

The closest suitable UPS I've found is this:

http://www.tripplite.com/EN/products/model.cfm?txtSeriesID=419&EID=361&txtModelID=3640

Can anyone suggest a better alternative?

I want something sturdy, preferably metal, that can screw to a wall
and be worry free for years at a time.