Automatic dry run protection and automatic restart Automatically enables protection when there is no water, stops the pump to prevent burnout, and restarts automatically when water is available. This helps extend pump life and reduces the risk of motor damage. Fully automatic control switch for water saving The pump turns on and off as water pressure changes, helping to conserve water and energy without manual intervention. Builtin pressure gauge for stable performance Integrated pressure gauge supports stable operation in water system electronic pressure switch applications. Wide compatibility Suitable for pumps, jet pumps, garden pumps, water pumps, and similar equipment. How it works When water is not present, the protection function activates to stop the pump. When water returns and pressure changes, the system automatically starts the pump and then stops as pressure builds, maintaining efficient operation. Specifications and use Builtin pressure gauge for monitoring and compatibility with water system electronic pressure switches. Designed to work with a range of common pump types including pumps, jet pumps, garden pumps, and water pumps. Use scenarios Home garden irrigation with a jet pump: The controller starts when irrigation zones demand water and stops when pressure builds, preventing dry run and saving water. Rainwater harvesting system: Maintains reliable pump operation as tank level and pressure vary, protecting the pump while ensuring consistent supply. Small greenhouse or yard water transfer: Automatically manages pump activity based on system pressure, reducing manual checks and promoting efficient watering.