existing system

[rico]

I have a system installed with X10
capability.  Can I add devices to it, like
additional window sensors for example, if I
purchase them here rather from the original
supplier?

[Phil Han]

You should be able too, as long as the
console is an x10 product.  Try to find the
model number or what it looks like and I
can help you better.  You said X10
capability, there are alot of other brands
that have the capability, but that does not
mean you can use transmitters such as a
door window sensor, it could mean that it
can send a signal to turn on a house light,
etc.