Auerswald TFS-Dialog 311 - Door Intercom

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The Auerswald TFS-Dialog 311 is a versatile intercom and doorbell system designed to work with analog extension connections. It supports up to four doorbell buttons and can also be used as a light switch. Call numbers and basic functions can be conveniently programmed via a telephone. The system offers two sensitivity levels to accommodate different ambient noise. Wear-free switching contacts ensure reliable operation for door openers, doorbells, and lights, with a bell transformer required. The integrated LED lighting is energy-efficient and allows for infinitely variable color adjustment from cool white to warm yellow. Additional switching options can be implemented using optional A/B switching modules. - Works with analog extension connections from Auerswald and other manufacturers - Two sensitivity levels for different environments - Wear-free switching contacts for door openers, doorbells, and lights - Energy-efficient, steplessly adjustable LED lighting - Additional switching options via optional A/B switching modules. Show more