On Sun, 18 Mar 2007 11:36:03 -0400, Speedy Jim wrote:

Bg wrote:

Is there a 3-way switch that has a light showing that the light (outside and
can't be seen form the switch) is on. I have an outside garage light with 2
switches, one in the garage and one in the front hallway. From the hallway
you can't see if the light is on or not. Either switch can be in the up or
down position based on where it was turned on or off. (hence 3-way switch)
Looking for some means to identify if the light actually on.

Thanks
Bg



A truly easy/simple way? I doubt it.

Maybe an X-10 device at the light.


An X10 module does not monitor the load and transmit it's status.
Considering knowing because you turned it on/off, I've known several
with relays that would operate more than once upon receiving a
command. You never know when that happens. The current transformer
solution below should work.

An approach I've used for monitoring circuits
like this is to put a very small current transformer
(toroid) in the line. The xfmr secondary can directly
drive a small LED pilot. Not simple and not off-the-shelf.

Jim
--
Mark Lloyd
http://notstupid.laughingsquid.com

"Unlike biological evolution. 'intelligent design' is
not a genuine scientific theory and, therefore, has
no place in the curriculum of our nation's public
school classes." -- Ted Kennedy