The trail tracker is the easiest, most effective and most economical way to monitor any game trail or food plot. It is not a game camera therefore comes without the hassles that game cameras can cause. this unit is simply an inexpensive way to tell when and where the animals are. We have narrowed down the field of view to a 10 degree horizontal angle and 30 degree vertical angle to virtually eliminate false readings and help ensure an animal is counted only once. Battery will last a full season. internal memory counts up to 500 animal movements. displays the date and time (no picture) of each activity so you know when the animals are using the area/trails you are watching. water resistant and lightweight, straps to any tree.