Strand of Prayer Beads and Use Magic Device

[Jens-Christian Ambrosius Bodilsen]

If a non-Divine-spellcaster character uses the Use Magic Device to cast a divine spell from an external source (wand, scroll or staff) do he then qualify as having cast a divine spell and can thus use the capabilities of a Strand of Prayer Beads, which was in his possession at the time of the spellcasting incident?

[Verik Jarrow]

Wand and Scroll definitely no, they simply are not effected by your caster level, but probably for a staff which is.

[Bobson]

Actually casting a divine spell doesn't give you any special ability to use the strand - it just automatically teaches you what it can do and how to activate it (which you can also learn in other ways). So the question is irrelevant.

The better question is how to activate each bead with UMD, and the answer varies: The beads of blessing, smiting, and wind walking function as spell-trigger items (like wands), so the DC is 20 (like a wand). For the beads of karma and summon you'd need to use UMD to emulate the ability to cast divine spells. The DC for that is 21: Your level in the class you pick is your check result -20. Since a 1st level cleric is capable of casting divine spells, 21 is sufficient.

It doesn't say how the bead of healing works, but I'd assume it's spell trigger as well.