Leviton makes two different companion switches, the VP00R-1L and the VP00R-10L. The only visual difference is that one has an LED power indicator and the other doesn’t. So, I decided to buy the ones with the LED.
Alas, it appears that there is a technical difference between the two as well. My companion switch boxes do not include a neutral wire. They only have common (line), ground, and the two travelers. But the VP00R-1L (the one with an LED) requires a neutral wire. So, sadly, none of my companion switches will work with my present wiring.
Rather than re-wiring all of my companion switch boxes, I would rather just use a companion switch that doesn’t require a neutral. I took a look at the instruction manual for the VP00R-10L (the one without an LED), and it appears that it does not require a neutral. Can anybody confirm this? I want to make sure I order the right switches this time.