[Main unit] ・Rated voltage: DC12V ・Operating voltage range: DC7V-17V ・Current consumption: 0.9mA or less (in standby mode) ・Outer diameter dimension: W36 x H70 x D19mm [Sirens] ・Model: Piezoelectric type ・Output sound pressure level: 122±5dB / 12V / 10cm ・Frequency: 2-4KHz ・Outer diameter dimension: W39.5 x H48 x D23.5mm [Indicator light] ・Model: LED (Light Emitting Diode) ・Emission color: red [Component parts] ・Main Unit x 1 ・Siren x 1 ・LED Indicator Lamp x 1 ・Electro Tap x 2 ・Instruction manual