The Hydrofarm Autopilot Digital pH Controller and Automated pH Adjustment, model APCEPH1, is a hydroponic system accessory designed to monitor and regulate the pH levels of nutrient solutions in hydroponic setups. Manufactured by HYDROFARM INC in China, this device ensures precise pH control for optimal plant growth. With its automated adjustment feature, the controller takes the guesswork out of maintaining the correct pH balance, making it easier for users to achieve successful hydroponic cultivation. Weighing 0.200 pounds, this product is a reliable tool for gardeners and growers looking to streamline their hydroponic system management.