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Amplifier Model 478

Amplifier Model 478
General Information

The compact control amplifier features solid-state integrated circuitry for clear communication with adjustable speaker/tone. Only one control amplifier needs to be installed and a door-release at a single main entry. Features an electronic ‘Vistor’ tone and quiet mode when not in use. Surface mounts in a utility room, closet or other out-of-the-way location. No rough-in required.