Taylor 6577 Green Living Sun Meter at $22.95, makes it easy to measure the amount of sunlight in a specific area indoors or outdoors. Simply place the sun meter in the area you intend to plant and press the start button. After twelve hours the LCD screen will display an icon representing the amount of light the location receives. You can now find foliage best suited for that area by looking for plants that have the same light needs as the icon displayed on the Sun Meter.