This is plug-in doorbell intercom is great for your peace of mind. Not only offers convenience when answering your door, but safety for you and your family. Easy to install.� If you have a doorbell, you can use your existing doorbell wiring and� no new wires are needed for this intercom system.� The interior intercom module plugs into any electrical outlet and communicates with the intercom doorBox via the existing electrical power line in your home. This plug-in doorbell intercom is expandable up to 4 stations. This kit comes with a doorbell module and one 3-channel power line indoor intercom module. SPECIFICATIONS: Door Module: ��Power Source 12VAC @60 Hz. ��Choice of two carrier frequencies (A) 230 KHz, (B) 260 KHz. ��RF output 80 mW (70 mW - 100 mW). ��Standby current 30mA. ��Maximum current 180 mA. ��Dimensions 3 in x 5.25 in x 1.25 in 3-Channel Wireless Intercom: ��Power source 110VAC @ 60 Hz. ��Carrier frequency (A) 230KHz,(B) 260 KHz,(C) 290 KHz ��RF output power 100mW. ��Audio output 500mW. ��Modulation method - Frequency Modulation (FM). ��Dimensions 6x5x1in. Manufacturer: Westinghouse Manufacturer warranty: 1 year limited Product questions: 800-842-5378
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