IR temperature gun (whats the best one?)

   / IR temperature gun (whats the best one?) #1  

Sodo

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Cascade Mtns of WA state
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Kubota B-series & Mini Excavator
Needed one of these years ago,,,, many many uses!

Any opinions which one offers the best value? Saw one that has distance measurement feature but its $500.

Any details I need to watch for?
 
   / IR temperature gun (whats the best one?) #2  
How much do you want to spend :D
 
   / IR temperature gun (whats the best one?) #3  
Harbor freight gun that I have is accurate. Can't beat the price
 
   / IR temperature gun (whats the best one?) #5  
I got one from Northern tool, pretty cheap.
 
   / IR temperature gun (whats the best one?) #6  
I wait for them to be $19 at HF. I've got three now, somewhere :)
Get the ones that use AAA vs 9 volt.
 
   / IR temperature gun (whats the best one?) #7  
I have one of the 5-6 year old Flukes, F or C is an internal switch, uses a 9volt - I've dropped it on concrete from about 3 feet, battery and cover came off - put it back together and worked fine.

Earlier HF one with two buttons and trigger, remembers which (F or C) you had last - no longer available. Rats...

3 of the current crop of 1 button versions, have to push the button after you turn it on EVERY TIME, or it will read in C.

Used to have 4 of those, don't recommend dropping them on ANYTHING (ever play the game "operation" ? :eek: And yes, the patient DIED...

No complaints about accuracy, and at $25 on sale the HF is hard to beat.

All but the pretty expensive ones are fixed emissivity, meaning they will read closer to actual temp on some materials than others. Shiny :D or dull, clean or rusty, flat black or gloss yellow, all can make a difference from an actual contact thermocouple reading - but usually not much, and if your usage is typical you'll be looking for temp DIFFERENCES more than actual.

Most seem to have either 10:1 or 12:1 beam, meaning that if you are 10" (or 12", depending) away, the target area will be 1" dia. - This can really screw you up for some things, so it's important to keep in mind. (Hint - just because the LASER dot is 3/8" across, does NOT mean that's all you're measuring :D )

I got more, but you probably won't be buying the $5000 instruments it applies to... Steve
 
   / IR temperature gun (whats the best one?) #8  
I have 2 IR temperature guns. Both have the laser light to measure temp. on a specific point. The first one I bought it 2001 for use at work. It is a Raytek model ST3LX. I don't think that model is made anymore (NLA through Grainger's). A couple years ago I needed a gun that would read higher temps at work so I bought a Westward model 6AUD3 and brought the Raytek home for garage use. Both were bought at local Grainger store and were under $180. each. They don't measure distance. Neither may be the best IR gun but both measure temp. very well and accurate.

https://www.grainger.com/product/GR...ermometer-4PD54?nls=3&ssf=3&searchQuery=4pd54
https://www.grainger.com/product/WESTWARD-IR-Therm-6AUD3?functionCode=P2IDP2PCP
 
   / IR temperature gun (whats the best one?) #9  
I have one of the 5-6 year old Flukes, F or C is an internal switch, uses a 9volt - I've dropped it on concrete from about 3 feet, battery and cover came off - put it back together and worked fine.

Earlier HF one with two buttons and trigger, remembers which (F or C) you had last - no longer available. Rats...

3 of the current crop of 1 button versions, have to push the button after you turn it on EVERY TIME, or it will read in C.

Used to have 4 of those, don't recommend dropping them on ANYTHING (ever play the game "operation" ? :eek: And yes, the patient DIED...

No complaints about accuracy, and at $25 on sale the HF is hard to beat.

All but the pretty expensive ones are fixed emissivity, meaning they will read closer to actual temp on some materials than others. Shiny :D or dull, clean or rusty, flat black or gloss yellow, all can make a difference from an actual contact thermocouple reading - but usually not much, and if your usage is typical you'll be looking for temp DIFFERENCES more than actual.

Most seem to have either 10:1 or 12:1 beam, meaning that if you are 10" (or 12", depending) away, the target area will be 1" dia. - This can really screw you up for some things, so it's important to keep in mind. (Hint - just because the LASER dot is 3/8" across, does NOT mean that's all you're measuring :D )

I got more, but you probably won't be buying the $5000 instruments it applies to... Steve

Good tips. I think there's a learning curve to using them properly, and I'm not sure I've mastered it even now. I think they're especially useful in detecting temperature gradients across various surfaces (e.g., abnormal hotspots/coldspots), as distinguished from precise absolute values. For the latter, I'd want to have a way to calibrate for accuracy. I have a couple different types from HF, and they seem to work great.
 
   / IR temperature gun (whats the best one?) #10  
I have one made by Fluke. It is fantastic. It is rated for 3 meter drop test. I haven't ever dropped it 3 meters, but it has survived dozens of drops.
 

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