Radio Shack used to sell those. I don't know if they still do.

----- Original Message ----- 
From: "Alan B. Pearce" <A.B.Pearce@rl.ac.uk>
To: "Microcontroller discussion list - Public." <piclist@mit.edu>
Sent: Wednesday, January 04, 2006 9:45 AM
Subject: Re: [EE]: stupid mistakes


> >A very good method for testing IR, is to use a digital camera.
>
> I have a special test stick, made by Kodak. I do not know the original
> purpose of it apart from being designed for detecting IR illumination. It
> consists of a piece of FR4 about an inch wide and 4-5 inches long, with a
> blob of some sort of epoxy on the end that is sensitive to IR light. 
> Flashes
> quite noticeably when a TV remote is directed at it from a few inches.
>
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