performance electromagnetic relay demonstration unit designed for reliable and repeatable operation in educational and experimental settings. Key benefits Stable and reliable operation that reduces experiment variability and supports consistent demonstrations. Durable construction using , rust resistant materials for long service life in classroom and workshop use. Compact and lightweight design for easy handling, storage, and travel between labs or classrooms. Clear, demonstrable working principle that helps students and hobbyists understand electromagnetic switching and energy conversion. How it works When the coil is energized the iron core becomes magnetic and attracts the armature. When the power is removed the core loses magnetism and the armature returns to its original position, opening or closing the circuit. This straightforward action makes the device ideal for showing how electrical input is converted to mechanical movement to control circuits. Function and compatibility Function: Electromagnetic relay for demonstration of switching and control in basic electrical circuits. Compatibility: Suited to educational circuits, experiment benches, DIY electronics kits, and simple test setups. Size and weight: Compact and lightweight for convenient use and transport. Material and performance: Built from rust resistant materials with stable characteristics and reliability. Practical use scenarios Classroom demonstration: Show live the operation of an electromagnetic relay during physics lessons, illustrating coil magnetism and armature movement. Kids science project: Integrate into a student circuit to demonstrate how relays can switch lights or small loads as part of a hands on experiment. Laboratory or workshop learning: Use for practical exercises on electromechanical components, circuit control, and relay operation. This instrument provides a reliable, easy to use way to demonstrate and explore electromagnetic relay principles without added complexity.