Route 100/Gray Road, West Falmouth ME. Driving southbound (toward portland) after a long open stretch of 45mph past hay fields. Poeple commonly go 50 to 53. Just past the Red Barn (on right, southbound), you come around a slight right hand curve that is a downward slope and is completely blind. The 35mph speed limit change (down from 45) is in the middle of that curve, and fairly obscured by bush branches. As of the date of this writing, for the past 3 weeks Falmouth PD has had a solar powered LED speed advisory sign right at the bottom of the slope, that only comes into view after you have rounded the bend and passed the obscured 35mph sign. This in itself is not a problem. Upon closer in person inspection of the sign, interested in where the radar module was located, it appears it is mounted behind the plexiglass. That however is not disturbing. What is disturbing is that a little over half way up the LED panel and slightly to the right of center, there is a pinhole camera mounted on a clearly visible circuit board with a processor. There does not appear to be an infared light emitter that I can see, but the half-dollar sized area right around the lense of the camera is clear plexiglass instead of shaded plexiglass like the rest of the panel. While I have not heard or read of anyone being cited as a result of this particular device, do be aware that your picture is likely being taken as you pass it, day or night, and the camera sits plenty high enough in the sign panel to see not only the entire front of your vehicle, but clearly see in and down into your front seat even if you are in a full size SUV or truck, because of the downslope of the road at the time you are in the picture frame. A snapshot of who you are, what you look like, your front seat passenger, whether seatbelts are being worn, whether you are holding your phone in your hand, it is all visible day or night. Inspection of the sides and rear of the unit show there is no rear facing camera to see the rear of your vehicle after you pass. High resolution digital photos available upon request. Thank you.