I'm following this guide  to made a Z-Wave compatible doorbell and it requires a SRU-12VDC-SD-C relay. I know nothing really of electronics and have found a SRD-12VDC-SL-C relay on Amazon  which looks to be similar, but because I've little knowledge I don't know for sure. Will the SRD-12VDC-SL-C work for the use I intend?
EDIT I've looked up the datasheets ,  and they don't really mean anything to me.
1, http://www.robbshop.nl/about-z-wave/z-wave-projects/z-wave-doorbel - this link is half in english, it's enough to understand what's going on. You will have to select the UK language selection drop down in the top left of the page for this link to work