What frequency do these SuperSwitch Remotes use?

I have a bunch of these outlets http://www.amazon.com/SuperSwitch-519768-Wireless-Programmable-PowerPackPro/dp/B004CN3IB4/ref=sr_1_1?ie=UTF8&s=electronics&qid=1299172933&sr=8-1 

but only one working remote. I've "sniffed" the serial data the receiver sees at the decoder chip and it looks like a simple protocol. I could probably build my own remote using a PIC microcontroller to send the right serial data but I'd need an RF module to transmit it at the right frequency. I took the receiver apart hoping I'd find a crystal or some marking on the board to indicate frequency but couldn't find anything. The "tank" circuit (if I've got that right) consists of a few turns of wire and a surface mount capacitor. That means nothing to me with my limited skill set. Hoping someone knows what frequency these devices work on or knows how to find out. 

DonEduardo (author) 6 years ago
I didn't want to take apart my one working remote. But I managed to purchase another kit on sale from Harbor Freight online. I guess it was one of the last few cause they are sold out now. I took apart the remote in the new set and it has a 315Mhz crystal designed for remote controls (HR315A).

So, I guess that's it. I'll order some 315Mhz transmitters and see if I can create additional remotes for the remaining sockets.

The answer depends on where you are in the world. In Europe, a good guess would be 433 Mhz, in the USA 815Mhz.