I’ve gotten a couple email on the new Love TS temp switches. They changed the wiring a bit. So, I thought I’d post a new graphic showing that wiring. Hope this helps some people out. Here’s the original post on the controller itself.
In text, take the black wire from the wall plug to #8, run a short jumper from #8 to #10. Then, connect the black wire from the device plug to #11.
Then run a length of wire from #7 to the white wire from the wall plug, and splice that into the white wire from the device plug.
Then splice the green ground wire between the wall/device plugs together.
This configuration is the typical setup of device is unpowered when switched off. If, for some reason, you wanted to be on when the switch is off (and not used the menu option) you could connect the jumper to #9 instead of #10.
There you go!

With the extension cord, I'm just basically cutting it in half. One halve plugs into the wall, the other plugs into the freezer with the controller wired inline. This way, you're not damaging the freezer's cord, cause you might want to use it as regular freezer some day. :)