Ideal Security Inc. SK626 SK6 Wireless Indoor/Outdoor Siren with Remote Control Panic Button, Super-Loud 110dB Alarm Loud 110dB siren with alert flasher Includes a remote control with panic button to activate/deactivate the siren Connect with up to 16 sensors to trigger the siren Receives signal from any of Ideal's wireless sensors Indoor/outdoor use, adapter must be plugged away from moisture