While I don’t have the best eyesight, I’ve met people who can see something move in the distance with insane levels of accuracy. Even if you’re someone with eagle eyes, an infrared sensor will always beat out human eyes for motion detection.
This Passive Infrared Motion Sensor utilizes a 3-pin PIR sensor to detect both people and animals from up to 20 feet away. You can configure the device for timing and enable or disable repeat signaling. It also features automatic induction, photosensitive control, and temperature compensation to achieve maximum performance in a variety of settings. By adjusting the distance and delay potentiometers clockwise or counter-clockwise, you can even customize the sensing distance and induction delay to suit your needs.
It does require a board, but it’s compatible with many of the boards in the BurgessWorld Custom Electronics store, or with most microcontrollers, including Arduino boards.
