The Thirsty Light Curve - Bumble Bee is a digital plant moisture sensor that blinks an LED light to alert the user as to when it is time to water a potted plant. It is designed to be unobtrusive when left in the soil of a plant where it continuously monitors conditions and tests the moisture level once per second. This moisture sensor can be used indoors or out. While most gardeners and horticulture enthusiasts know that not enough water can be deadily for their greenery, the opposite is also true. With the Thirsty Light Curve - Bumble Bee - you will always know when your plant's water supply is just right. Add some beneficial bugs to your garden today!