Ex Signal Horn Dimensions W x H x D: 178 x 232 x 104 mm Frequency: 100...150 Hz Operating temperature: -40...+50 °C Volume: 105 dB Weight: 1374 g Assembly: Bracket Mounted Colour: Black Current consumption: 70 mA Material: PC ABS Protection rating: IP65 Series: 761 Service life: &gt, 250 h Termination: Cage Clamp? Tone type: Continuous Operating voltage: 230 VAC