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Old May 17, 2006, 02:36 PM
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Kings Park, New York
Joined Jan 2005
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Best Handheld IR Temp Gauge?

I'd like to get a handheld (non-contact) temp gauge (primarily to measure the temp of motors after flight). What's the best value gauge out there? Cheapo would be OK if it works, but I don't mind spending a lot if it's for one that is significantly better than the cheapos.
Thanks!
Ken
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Old May 17, 2006, 03:28 PM
RIP Ric
Andy W's Avatar
Marietta, GA
Joined Jun 1999
43,312 Posts
I'm happy with the one I got from RadioShack, on sale for $30..
I wouldn't pay the regular $50 price, though.. wait for it to go on sale again..
..a
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Old May 17, 2006, 03:36 PM
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Cedar Rapids, IA
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I use the DuraTrax FlashPoint Infrared Temperature Gauge. Currently $22.99 at towerhobbies. Works great for checking motor/battery temp.

http://www2.towerhobbies.com/cgi-bin...&I=LXEMG5&P=ML
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Old May 17, 2006, 04:16 PM
A man with too many toys
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From what I have seen they all work very well. If you pay more than $35 you are paying too much.
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Old May 17, 2006, 04:45 PM
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Kings Park, New York
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Thanks! I'll get one of the cheapos and forget about the one that looks like a Star Trek phasor for $150 (I don't know the manufacturer).
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Old May 17, 2006, 04:54 PM
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Atlanta, GA
Joined Mar 2005
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Quote:
Originally Posted by mattweisz
I use the DuraTrax FlashPoint Infrared Temperature Gauge. Currently $22.99 at towerhobbies. Works great for checking motor/battery temp.

http://www2.towerhobbies.com/cgi-bin...&I=LXEMG5&P=ML
I got one from Tower also. Great little toy.
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Old May 17, 2006, 06:18 PM
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Lewis Center, OH
Joined Oct 2005
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I have the Duratrax also and it works pretty well. The phaser looking one is probably the Raytek. It's more precise and focused and has a cool laser to tell you where it's measuring the temp. I've seen it for about $80 at some of the online heli shops.
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Old May 17, 2006, 07:31 PM
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Ottawa, Ontario
Joined Oct 2005
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Nothing wrong with the Duratrax from what I can see. I compared it to a more expensive fluke at work and found the results almost identical (within 0.2 degrees on room temperature surfaces).

The big thing that you are paying for in higher end units is the distance/spot ratio - where it is 1:1 in the duratrax - i.e. a 1" circle at 1" distance, the better units have more like a 8:1 thru a 50:1 spot ratio - i.e. 1/50" spot at 1". (hence the need for a laser to pinpoint)

Unless you are trying to measure temps while the heli is spinning, the cheapo will likely do fine for you
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Old May 17, 2006, 10:13 PM
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Kings Park, New York
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Thanks again all!

What temp do you look for in the motor after a flight? I've heard that micros should be 120 to 140 degrees F. Minis (including Trex) should be more towards 110 degrees F. And larger birds should be at around 100 degrees F.
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Old May 18, 2006, 03:18 AM
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Cape Town, South Africa
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Depends on the motor. Some motors run hotter than others and have different heat tolerances.
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