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Best Telephones | Telephone System Addons - Door Entry Systems | Most Popular Door Entry Models | Kalika Ulydor SP2 - Power supply with Battery Back-up, KIT
The supplementary packs complement the pre-assembled systems and provide many of the optional components often used to complete an installation. Pack 2 contains a power supply with battery backup, a breakglass, an exit switch, an exit timer relay & a mini magnetic door lock with brackets
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