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Q-talk *ON TOPIC ONLY* QUALITY ON TOPIC discussion of Backyard BBQ, grilling, Equipment and just outdoor cookin' in general, hints, tips, tricks & techniques, success, failures... but stay on topic. And watch for that hijacking.


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Unread 11-28-2010, 12:59 PM   #1
Don Jeansonne
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Default Guru replacement probes

Has anyone found a less expensive probe for a Guru other than going back to Guru? Is the supplied probe a normal K-type thermocouple?
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Unread 07-31-2013, 07:02 PM   #2
rustnbbq
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Well, I searched and this is all I could find. Anyone know??
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Unread 07-31-2013, 09:47 PM   #3
NorthernMN
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Is the quality of the guru thermocouples not worth the price???

Temprel will make just about any combination of thermocouple you want but there price is going to be the same as guru. I know from experience with this company they are high quality thermocouples and the probes can with stand the heat but usually the bbq kills the wire not the thermocouple.
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Unread 07-31-2013, 09:50 PM   #4
NorthernMN
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If you measure the voltage on the wires you can figure out what type the thermocouple is.
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Unread 08-01-2013, 07:31 AM   #5
rustnbbq
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They are thermocouples, right?

NOT thermistors, which varies resistance with temp, not volts out, correct?
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Unread 08-01-2013, 09:28 AM   #6
John Bowen
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We looked at making our own probes and we did not see a cost or a quality benefit. We had a guy on the team who liked doing things like that but when it came down to game day I feel better using guru products.
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Unread 08-01-2013, 11:57 AM   #7
NorthernMN
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Quote:
Originally Posted by rustnbbq View Post
They are thermocouples, right?

NOT thermistors, which varies resistance with temp, not volts out, correct?
Not sure which they are since I dont have my guru yet but here is an explanation of both. You can measure the voltage on the temp probe to figure out which it uses.

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A thermistor is a type of resistor whose resistance varies significantly with temperature, more so than in standard resistors.

A thermocouple consists of two dissimilar conductors in contact, which produce a voltage when heated
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Unread 08-05-2013, 09:45 AM   #8
rustnbbq
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A friend overheated his probe and it fell apart. This was the pit probe.

It is a type T thermocouple judging by the color of the wires as per thermocouple standard. A T thermocouple uses copper and constantan wire. The one wire sure looks like copper.

It appears the wires are teflon insulation which is good for 500 deg F. Lesson is to remove the pit probe when cooking at high temperatures.

T thermocouples, like virtually all thermocouples, can be purchased with higher temps in mind. Fiberglass insulation for the wires is available. Another idea is to remove the alligator clip from the pit probe and insert the probe into the hole for the analog thermometer, thus keeping the insulated wires outside of the pit.
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