Accuracy of the smoker box temperature gauge

Discussion in 'Grilling Tips' started by jesse624, Jan 29, 2012.

  1. Bought a new Weber Smokey Mountain smoker last Oct. and lately have started to notice my smoked meats were cooking faster than expected, even though I was keeping the internal box temp. within a desired cooking range.  I dropped in another temperature sensor to check the thermometer reading of the kettle cover gauge.  I found that the factory installed TI reading was close to 30 degrees lower than check test TI.  When I removed the factory TI it was very much covered with a rather heavy coating created from the smoking process.  I cleaned the TI sensor and tested it with boiling water, and it read dead on 212*.  The coating build up was actually insulating the sensor from the actual box temperature.  I guess it's a good practice to clean these TI sensors every quarter if you want to expect fairly accurate readings.  Just a tip.
  2. sprky

    sprky Master of the Pit OTBS Member

    Good info thanks for sharing
  3. smokinal

    smokinal Smoking Guru Staff Member Moderator OTBS Member ★ Lifetime Premier ★

    I ended up replacing mine with a tel tru thermometer and it's right on the money.
  4. rbranstner

    rbranstner Smoking Guru OTBS Member

    Yep I have had that happen as well. I usually try to remember to rub a paper towel over the probe before I fire up the smoker each time.
  5. venture

    venture Smoking Guru OTBS Member

    You were lucky.  A lot of stock therms are WAY more than 30 degrees off!  [​IMG]

    Good luck and good smoking.

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