.Scope This specification is applied 1o Pie Siren The product describe below are used for buzzer in various alarm systems. 2.Basic Condition 2.1 Rated Voltage: 12V0C 2.2 Operating Voltage: 8~16VDC 2.3 Operating Temperature 2.4 Storage Temperature 3.Electrical Characteristics 2.1 Sound Press Level 2 100dB 2t 100cm / 12VDC 3.2 Consumption Current: S250mA nt 12VDC 3.3 Resonate 3.4 Tone Nature:Siren Sound 3.5 Material: ABS 4.Measuring Method Pigeon Sounder — voe goes | Decibel meter 40cm Measuring Distance 5.