Features: Automatic pump controllers: Automatically maintain constant pressure in the pipeline and a steady flow rate. Practical: Electric switches used in water supply systems to automatically start and stop the pump. Automatic dry-run protection stops the pump in case of water shortage, preventing damage. Widely compatible: Suitable for a broad range of applications including self-priming pumps, garden pumps, and centrifugal pumps. Widely applicable: Can control various pump types, ideal for use in homes, yards, gardens, greenhouses, and more. Low noise operation: Operates quietly without excessive noise. Durable construction with high-strength materials and all-copper connections for reliable performance. Notice: 1. Actual color may vary slightly from the image due to different lighting conditions. 2. Please allow 1-3 cm deviation due to manual measurement. Specification: Voltage: AU, EU Size: 7 x 7 x 5.7 inches