Seems like I can't get a definitive answer from Google as to whether Cadmium-Sulphide light dependant resistors are RoHS exempt or not.
Someone on another forum thinks they may have seen a note on a Radio Spares catalogue that LDRs aren't compliant.
activate a sound effect when someone walks past - its not difficult to see that the sensor is a LDR. It has a CE sticker on it, but no mention of RoHS.
For now, I've ordered a small stash from Ebay as they aren't (yet) changing hands at collectables prices.
Thanks for any help.