Penlight with convenient pupil gauge on side. Replaceable battery. Made in USA.
very nice for the price, convenient pupil gauge right on the light is great for immediate reference.
Like this product very much, gives an excellent view of the pupil size and it's reaction to light, far better than a regular penlight.
This was a good pen light initially. However, the pen light developed a poor connection at the top. This occurred after the 3rd battery change. I would not recommend, because I expected more life out of the light.