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Best Telephones | Telephone System Addons - Door Entry Systems | Most Popular Door Entry Models | Kalika Ulydor S4 - Two Button Door Phone with Access Control Keypad
With Kalika's unique door access control solution you can buy pre-assembled systems or build bespoke solutions with multiple buttons (up to 64), a keypad, RFID modules and cameras. These flexible, cost effective solutions are compatible with almost all telephone systems and are easy to use and install. Surface mounted Day & night modes DTMF or PC programmable Connect to an analogue extension Backlit (with optional power supply) Board heater (with optional power supply) Systems 1, 2 & 3 can operate without a power supply Robust weather resistant aluminium housing Supplementary packs available for door locking & operation
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