The Werma 123.100.54 is a compact electronic siren that emits an alternating tone pattern designed to grab immediate attention in safety-critical environments. Operating on 12 VDC, it is suitable for battery-powered or low-voltage DC systems commonly used in mobile equipment, transport vehicles, or emergency signaling. With a typical sound pressure level of approximately 90 dB (A) at 1 meter, the siren provides a clear and effective alert even in moderately noisy environments. Its robust black housing is built for wall or surface mounting and is engineered from high-quality industrial plastic for durability in daily operations. Thanks to its simple wiring interface and reliable performance, this alternating-tone siren is ideal for security systems, vehicle-based warnings, or control panel alerts in portable or standalone systems. Key Features: • Alternating-tone electronic siren for attention-demanding alerts • 12 VDC operation – ideal for mobile or battery-powered systems • Sound output: approx. 90 dB (A) at 1 m • Compact black housing with wall-mount configuration • Quick wiring via flat terminals or screw connections • Suitable for safety signaling, equipment alerts, or vehicle warnings • Maintenance-free design with long operational life