Feature: 1. Voltage detection: DC 0~50V; the relay can control the on/off within 5A. 2. Add ms grade delay time for preventing output vibration. 3. 0.04V measuring accuracy; user can turn off the display to reduce consumption. 4. DC 12V for power supply. 5. Output Capacity: Can Control the Load within DC 30V or AC 220V 5A Specification: Features: Voltage detection: DC 0~50V; the relay can control the on/off within 5A. Add ms grade delay time for preventing output vibration. 0.04V measuring accuracy; user can turn off the display to reduce consumption. DC 12V for power supply. Specifications: Output Capacity: Can Control the Load within DC 30V or AC 220V 5A Power Supply Voltage: DC 12V Test Voltage Range: DC 0-50V Static Current: 20mA Working Current: 50mA Working Temperature: -40-85°C PCB Size: 64 * 40 * 18mm / 2.52 * 1.57 * 0.7in (L * W * H) PCB Weight: 27g / 0.96oz Package List: 1 * Voltage Detection Relay Package List: 1 * Voltage Detection Relay