Digital thermostat with xlr connects?

I just bought a digital thermostat for my freezer and I'm fixing to build a box to house it in.I wanted to use xlr connects and wire it directly to the compressor and use a 1/8 stereo jack for the temp probe. Then I'll prolly super glue magnets to the box. I saw this idea from Black Heart brewery on you tube. Here is some pics of the parts with links.Any suggestions and feedback would be much appreciated.

Single Stage Controller. No need for 2 stage I live in Texas!
http://rover.ebay.com/rover/1/711-5...0001&campid=5338413729&icep_item=150606638066

Temperature Measuring Range: -58 ~ 194 deg F
Control temperature range: -58 ~ 194 deg F
Temperature measuring difference: ±1 deg F
Resolution: 1 deg F
Accuracy: ± 1 deg F (-50 - 70 deg F )
Sensor Type: NTC (10K/3435)
Power Suppler : 110~120V AC
Power consumption: < 3W
Relay contact Current: Rated 5A
Data retention: Yes
Working temperature: 32 ~122 deg F
Storage temperature: -14 ~ 140 deg F
Size: 78 x 71 x 29 mm ( L*W*H )
Weight: 110 g
Install Window Size: 70 x 28 MM

Project Box 7.5" x 4.3" x 2.2"
http://www.google.com/products/cata...=X&ei=AZlqT63NNI74sQKh_ZnnBQ&ved=0CJ4BEPMCMAI

Female end mounted to box. http://www.amazon.com/XLR-Type-Chassis-Mount-Male/dp/B0002ZPF94/

Cord to the compressor. I'll cut of the female end off.
http://www.amazon.com/Foot-Male-Female-Microphone-Cable/dp/B005CJKEFU
1/8 stereo jack male connected to the temp probe.
http://www.google.com/products/cata...=X&ei=65JqT4reN-mssALdoLnwBQ&ved=0CI0BEPMCMAE
female end for stereo jack in box.
http://www.radioshack.com/product/index.jsp?productId=2103451&CAWELAID=107594627

Why stereo for the temp probe?
I mean, I know it'll still work, but you have an extra conductor there that's unneeded. You should just go mono instead.
Also, I'm not sure what the amperage rating is for XLR since they're generally meant for audio. If I was going to do sweet locking power connectors, I'd probably go with some Neutrik Powercon's. Then again though, I used to work for a company that was a distributor for those types of things, so I always got them at cost...

Didn't realize they were stereo I meant to find mono connectors. Thanks for the info!

I think these might do the trick.
If not how would i wire this to a plug just like the 2 stage. Just don't remove bracket?