Harmony XVR Buzzer Beacon, 90dB, Green LED, 100 → 230 V ac. Mounting Style: Base Mount. Light Effect: Flashing, Rotating. Sounder Type: Electronic. Housing Colour: Black. Minimum Decibel: 70dB. Special Features: Installation is Made Easy with a Flexible Voltage Input and Light Mode Selector, The Harmony XVR Range are Visual and Audible Signaling Units Mainly Used for Factory Applications, Construction Vehicles and in Public Areas. IP Rating: IP23. MPN: XVR3M03S, Schneider Electric