user7586: I am looking for a thermal sensor with a distance of 10 meters . In my plan , I would like to recognize objects based on the heat. for example car.

user5168: How about this one at £20?
The range depends on what lens you put in front of it - this has to be plastic as IR doesn't penetrate glass, but you can set your own range, like a focus adjustment. Commercial IR remote thermometers generally have aiming dots (laser) so you can see the optimum range - there's a fixed lens.
The actual sensor won't have a defined range, because of this.

7586: <p>I am looking for a thermal sensor with a distance of 10 meters . In my plan , I would like to recognize objects based on the heat. for example car.</p>
 5168: <p>How about <a href="https://www.sparkfun.com/products/9570" rel="nofollow">this one</a> at £20?</p>

<p>The range depends on what lens you put in front of it - this has to be plastic as IR doesn't penetrate glass, but you can set your own range, like a focus adjustment. Commercial IR remote thermometers generally have aiming dots (laser) so you can see the optimum range - there's a fixed lens.</p>

<p>The actual sensor won't have a defined range, because of this.</p>
