Feature Highlights: 1. Universal Wireless Control – Operates at 433 MHz frequency for reliable wireless communication, suitable for a wide range of applications. 2. Compact & Durable Design – Made from sturdy ABS material, this programmable controller is built to last while saving space. 3. Easy Wire-Free Setup – Simple wire control installation with no complex wiring needed, ready to use right away. 4. Clear Channel Operation – Single-channel design ensures stable signal transmission without interference. 5. Versatile Compatibility – Ideal for various automation and control projects, offering flexible programming to meet different needs. Product Details: The Compact Smart Relay Zelio Logic SR3B261BD Programmable Controller is designed for easy, reliable wireless control. It uses a 433 MHz frequency with one channel for stable operation, and its ABS construction ensures durability in everyday use. With straightforward wire control setup, it’s perfect for automating lights, appliances, or small systems—no specialist skills required. Compact and user-friendly, it helps you create smart control solutions quickly and efficiently. Specifications: - Frequency: 433 MHz - Channel: 1 - Model Number: SR3B261BD - Wireless Communication: Wire Control - Use: Universal - Color: As Shown - Material: ABS - Package Contents: 1 x SR3B261BD Programmable Controller Only the above package content is included; other products are not provided. Note: Slight color variations may occur due to lighting or screen differences. Measurements may have an error margin of +/- 1–3 cm.