i have eos alarms and their good. the eos x's just have more sensitivity settings and stuff, the same features as the eos just more adjustability. eos has more than enough features, you'd probably be better off with mx's which are cheaper and go nice and loud for when you need it. eos have got interchangable coloured lenses for the led which is cool, and covers.for me they have proved reliable and tough which is the most importantfactor. ive had mine for 3-4 years now and they're good as new.
p.s. only EVER buy fox or delk's............./forum/smilies/wink_smiley.gif