LED Buzzer Dimensions ø x H: 49.5 x 74 mm Operating temperature: 20...50 °C Volume: 80 dB Cap: Polycarbonate Case colour: Black Housing: ABS / PC Protection rating: IP65 Service life: up to 50000 h Termination: Screw Terminal Tone type: Buzzer / Continuous Frequency: 2.8 kHz Operating voltage: 230 VAC