No matter what type of hunting you are engaged in you should always keep a rangefinder handy. While treestand hunting, they are a great tool to help you establish landmarks that coincide with particular yardages.
These reference points (trees, logs, rocks, etc) can be called upon when the shot happens too quickly for an actual reading from your rangefinder. Also, these versatile little devices are important when shot angles are steep. With the best models today offering “angle compensation” features, the days of misjudging distance due to the degree of incline are over. As an added bonus, rangefinders are becoming smaller and smaller so they are less likely to get in the way during the shot as well. While in my stand, I prefer not to have my rangefinder positioned around my neck or chest. Instead, I like to hang mine on a retractable tether system and attach it to my back pack….which is usually fastened to the tree. When it is not in use, it remains within easy reach, but well out of my way.