I am considering purchasing some of these relatively inexpensive relay modules from Monoprice. Monoprice sells one that supports one circuit and one that supports two circuits.
One Circuit:
https://www.monoprice.com/product?c_id=122&cp_id=12212&cs_id=1221201&p_id=11989&seq=1&format=2
Two Circuits:
https://www.monoprice.com/product?c_id=122&cp_id=12212&cs_id=1221201&p_id=11990&seq=1&format=2
The schematic shows that the one circuit version can be used on a three way circuit and it has a wiring diagram to do so. I am wondering if anyone knows if this is also possible with the model that supports two different circuits, if either or both of the circuits it would control could be wired as three way circuits, following the method in the schematic of the one circuit model.
Thanks for your help.