Feature: 1. HIGH EFFICIENCY AND RELIABLE: Timer relay module is made of excellent ABS material to ensure efficient and stable performance 2. ACCURATE CONTROL: The timer relay switch module can accurately set time periods and delays to meet user requirements 3. EASY TO USE: The digital timer relay module has a simple interface and user-friendly design, making it easy to set up and use 4. MULTI-FUNCTIONAL APPLICATIONS: Timer relay voltmeter is suitable for different scenarios and widely used in various fields such as homes, offices, and factories 5. ENERGY SAVING AND ENVIRONMENTALLY FRIENDLY: The cycle timer relay module features a low power consumption design to save energy Specification: Item Type: Timer Relay Module Material: ABS Timing Range: 0-999 seconds, 0-999 minutes, 0-999 hours Relay: 20A Product Size: Approx. 79 x 26 x 43mm / 3.11 x 1.02 x 1.69in Hole Opening Size: Approx. 72 x 40mm / 2.83 x 1.57in Package List: 1 x Timer Relay Module