X10 Powerhouse DM10A PRO Wireless Outdoor Motion Detector Works with any X10 RF transceiver including ActiveHome & ROBO-Dog, barking dog alarm The DM10A outdoor PIR motion detector / light sensor senses movement from an approaching intruder and activates the Barking Dog Alarm which then plays a high quality digital recording of a raking dog. Automatically turns on a light a few seconds after barking startsto make it look like someone is home and responded to the sound of a barking dog. The DM10A Also works with the PAT01 transceiver. Upon detection the DM10A can turn on X10 controlled lights and appliances. No OFF command is sent, however. To turn the lights and or appliances OFF after a preset time, you can program a macro in the CM11A PC Interface Mode. Includes motion detector only Model DM10A. Barking Dog Alarm sold separately. The DM10A also automatically turns on one or more lights at dusk and turns them off again at dawn (with optional LM465Lamp Modules).