Why does the description here claim there are customizable ranges of 15, 30 and 45? These are not customizable and have a max of 30 ft, not 45!

Thanks for the feedback. The Motion Sensor works by passive infrared, which means that range can vary depending on environmental conditions. However, the 30ft range is the typical when the Motion Sensor is set to the default "medium" setting. You can access the sensitivity switch in the back of the device to customize it.