Harmony XVM LED Beacon Tower with Buzzer, 2 Light Elements, Green, Red, 24 V ac/dc. Light Effect: Steady. Decibels at 1 Metre: 85dB. Mounting Style: Base Mount. Height: 448mm. Base Diameter: 47mm. Connection Type: Cable. Minimum Decibel: 0dB. Maximum Decibel: 85dB. IP Rating: IP42. MPN: XVMB2RGSSB, Schneider Electric