Chlogrophy Concentration Meter is a hand held, battery operated instrument designed for the rapid, nondestructive, determination of chlorophyll content in intact leaf samples. Chlogrophyll content is a direct indication of plant health and condition. Obtaining chlorophyll content via non-destructive analysis gives researchers, agronomists and growers valuable diagnostic information. This data can then be applied to multitude of crop production and research initiatives such as : nutrient and irrigation management, pest control, environmental stress evaluation and crop breeding.