Active piezo electronic buzzer module support Dc 3-24V wide voltage power supply It is a continuous Tone As long as it is been powered it will Beep continuously Sound Output: 100dB at 12V Dc 30cm, Response Frequency: 3000A500Hz, these buzzers are very loud which are not used indoors, them could be used outdoors, such as traffic, factory, etc Rated current: 15mA, Module Size: 30 X 15mm118 X 059inch(D*T) Warranty guarantee: If the item you received is defectived,please contact us at first time,we will arragne a new replacement or give you a full refund
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Item# : SPM10138020302
Model # : 923002