Harmony XVR Buzzer Beacon, 90dB, Red LED, 12 → 24 V dc. Mounting Style: Base Mount. Light Effect: Flashing, Rotating. Sounder Type: Electronic. Housing Colour: Black. Minimum Decibel: 70dB. IP Rating: IP23. Housing Material: Polycarbonate. MPN: XVR3B04S, Schneider Electric