12V Relay Module with Automatic Delay Timer

From the shop's description

This is a 12V Relay Module with Automatic Delay Timer. The module consists of a 12V relay along with a three-digit seven-segment display. The module is based on an N76E003AT20 microcontroller.The module has three buttons one to control the function and others to set the delay time. Connection Diagram: 1.12 V load Features: Increase the power supply anti-reverse function. The use of optoisolated input and output enhanced anti-jamming capability and consumption. The last setting parameters can be memorized after power off. A signal terminal voltage signal can be maintained for a long time. To ensure stability, industrial grade PCB board. Package Includes: 1 x 12V Relay Module with Automatic Delay Timer Model: Relay Module Operating Voltage (VDC): 12 Signal voltage 4 – 20VDC Output Capacity Can Control the Load within DC 30V 5A or AC 220V 5A Static Current 20mA Working Current (mA) 50mA Operating Temperature (°C): -40 to 85 Length (mm): 68 Width (mm): 40 Height (mm): 25 Weight (g): 44 Shipping Weight 0.047 kg Shipping Dimensions 9 × 10 × 3 cm