Feature(may vary by option.)

●Active piezoelectric buzzerr,piezo alarm, module support DC 3V 12V 24V wide voltage power supply
●SOUND OUTPUT: The buzzer alarm is 100dB at 12V DC 30cm, you can wait until the volume you think of by adjusting the voltage. Response frequency: 3±500Hz
●RATED CURRENT:15mA at 12VDC,12V Alarm Module Size: 30 X 15mm/1.18 X 0.59inch(D*T)
●SOUND TYPE: continuous sound,No need to drive, it will make a sound when power is on
●100% QUALITY ASSURANCE,The warranty is 1 year. During the warranty period, if there is any quality problem with the 24v alarm, please contact us.

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Description

Product parameter Length of Wire: 12cm /4.72in Diameter: 3cm /1.2in Rated Voltage: 12V Range of Voltage: 3-24VDC Rated Current: 15mA at 12VDC Sound Pressure Frequency: 100dB at 12VDC /30ma Resonant Frequency: 3.0±0.2KHZ Operating Temperature: -20+45 Degree C Storage Temperature: -20+60 Degree C Package Includes: 3× SFM-27-W DC 3-24V Active piezoelectric buzzerr