Propane Grill Temp Sensors?

Hello everybody, I am trying to do some research on the correct type of sensor & cabling to use for an arduino controlled grill. Before I spend money, time & energy trying to tackle this project full force, I want to take some temperature measurements to see how the grill is performing & get a baseline.

Basically, I want to attach a few sensors, and do some grilling to to get a histogram timeline of how hot everything is running.

My question is, what type of sensor & wire is suitable for being placed INSIDE the grill itself? Ideally I’d like to mount a few sensors inf the following places

  • On the top of the grill cover
  • On the grill surface
  • Below the grill closer to the burners
    I am having trouble locating information to pick out the best sensors and wiring. I think the temperature range of the grill maxes out between 300 and 500 degrees. Anybody try something like this or know of sensors/probes/cabling that would be a good fit?

http://mouser.com/ProductDetail/Honeywell/590-33AA38-103/?qs=sGAEpiMZZMvhQj7WZhFIABL7LSM63aRW%252bVAAE4%2f4M7k%3d

http://mouser.com/ProductDetail/Honeywell-Microswitch/HEL-705-U-1-12-00/?qs=sGAEpiMZZMvhQj7WZhFIAOPwZSj%2fjTAnyI7lg3kHUjk%3d

Your best bet will probably be a thermocouple of some sort (for instance http://hpsweb.honeywell.com/Cultures/en-US/Products/Instrumentation/tempsensors/default.htm), especially when the temperature can be as high as 500 degrees.

The below might be what you need.

http://www.testpath.com/Items/K-Type-General-Purpose-Thermocouple-Bead-Temperature-Probe-110-020.htm

http://shop.ebay.com/i.html?LH_BIN=1&_trkparms=65%253A12%257C66%253A2%257C39%253A1%257C72%253A3112&_nkw=type+k+thermocouple&_sticky=1&_trksid=p3286.c0.m14&_sop=15&_sc=1

http://shop.ebay.com/i.html?_nkw=type+k+thermocouple&_sacat=0&_odkw=multimeter+thermocouple&_osacat=0&_trksid=p3286.c0.m270.l1311

these are made specifically for your task and work nicely. maverick high temp probes

22k resistor & 5v are all thats needed.

this thread has code for interfacing probes with arduino