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Those point-and-shoot thermometers are on sale for 30 bucks. Do you use one often? Are they actually of value to do diagnostics, in terms of their sensitivity, selectivity? Are there good ones, and not-so-good ones?
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In my experience they aren't used often except for maybe solid state stuff but if you have a use for it 30 bucks isn't a big investment. Worse comes to worse you can use it in the kitchen/bbq arena. My experience: Bought one once to measure the temperature of a mosfet/heatsink in a power scaling installation. Maybe used it on a hot cathode resistor for curiosity. Have since used it mostly in the kitchen since then. The one application I can think of is hunting for a cold transistor in a solid state amp.
 

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I use one a fair bit, I have several "torch based" activities.
Be aware that the point and shoot will render different readings from the same source, depending on distance.
But yes, they work just fine.
 
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