Works in home with doorbell system already installed. Works in home without doorbell system. Built-in outlet to flash a plugged-in lamp. Has switch to al low lamp to be turned on and off for normal room lighting. Transmits to Remote Receiver(s) to flash lamps in other rooms. Can plug in the Add-On Strobe instead of using a remote receiver or lamp.
Model LT
Works in home with doorbell system already installed. Works in home without doorbell system. Built-in outlet to flash a plugged-in lamp. Has switch to al low lamp to be turned on and off for normal room lighting. Transmits to Remote Receiver(s) to flash lamps in other rooms. Requires simple wiring to a doorbell or a doorbell chime. Can plug in the Add-On Strobe instead of using a remote receiver or lamp.

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