Hydrofarm HGTLBB Digital Plant Moisture Sensor

While most gardeners and horticulture enthusiasts know that not enough water can be deadly for their greenery, the opposite is also true. We created the Thirsty Light so you’ll always know when your plants’ water supply is just right. The Thirsty Light is a digital plant moisture sensor that blinks an LED to alert the user when it's 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, testing the moisture level once per second. Add some beneficial bugs to your garden today!