Reading temperature remotely

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atrus6
 
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Reading temperature remotely

Post by atrus6 »

Basically I want to a circuit that lights up a light if a certain area is over 50C. Would an IR sensor pointed at the location work? Or is something else needed. It doesn't need to be accurate, just good enough.

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stinkbutt
 
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Re: Reading temperature remotely

Post by stinkbutt »

IR sensors, at least the ones you find here and on sites like this one, are mostly confined to motion sensing. They don't report temperature like the ones I think you're talking about.

I assume putting a circuit into your > 50° C area is out of the question because it's > 50° C in there. But could you tolerate a thermocouple stuck in there?

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atrus6
 
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Re: Reading temperature remotely

Post by atrus6 »

Well, the idea was for it to be non-contact. And yes, I was thinking about an infrared thermometer. I just don't need to accuracy (and the expense) of a thermometer though.

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adafruit_support_bill
 
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Re: Reading temperature remotely

Post by adafruit_support_bill »

Pololu has an IR temp sensorfor about $20. The FOV is 90 degrees, but you could probably narrow that a bit with some optics.
A thermocouple plus an amplifier will run you $27.50.

The TMP36 sensor is good to 150C and only costs $2.

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zener
 
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Re: Reading temperature remotely

Post by zener »

You could use a Melexis non contact sensor.

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