External Signaling Relay The Aiphone RY-ES is an external signaling electromechanical relay designed for signaling and control applications in industrial, audio/visual, and security systems. Built for reliable switching and signaling, this compact relay ships with included components for easy installation (tool part included). Features include automatic operation mode, a compact footprint (product dimensions: 10 x 10 x 10 inches), and a lightweight design (1 pounds). Ideal for integration into control panels, alarm systems, or AV signaling setups. UPC: 788255393114. ASIN: B008YLE1JS. "Incredible tools at an incredible price."
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