Does this buzzer need to be driven?

No need to drive, you just need to connect the power and it will make a sound

Is the sound of this unit a Beep, Buzzer or Siren?

It's a beep. I used my mobile phone to take a picture of the sound made by connecting a 9V battery. You can turn it on to see if it meets your requirements.

What is the wire gauge size?

pretty small, maybe 18 or 20 awg. I connected to 18awg on a 28vdc 3amp system. and it works great.

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Fully operational. Shipping worldwide, on schedule.Customs & duties included in the price

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3PCS DC 3-24V 90dB Active Piezo Electronic Buzzer Beep Tone Alarm Ringer Continous Sound (Black) SFM-27-W

Product ID: 289427904

Details

Brand
WEICHUANG
Color
black
Compatible Devices
DC Powered
Power Source
DC Powered
Product Dimensions
1.18"L x x

⚡Wide 3-24V DC range

🔊90dB loud output

🔧Compact 30x15mm size

HK$85

Duties & taxes included

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Sold byAmazon Hong KongDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🔔 Elevate your security game with sound that speaks volumes!

COMPACT DISCREET - Slim 30x15mm footprint fits effortlessly into tight spaces without bulk.
POWERFUL 90 D B ALERT - Cut through noise with a piercing continuous beep that commands attention.
PLUG PLAY SIMPLICITY - Active buzzer design means instant sound on power-up—no extra drivers needed.
RELIABLE BACKED BY WARRANTY - Built to last with a 1-year quality guarantee for peace of mind.
VERSATILE VOLTAGE COMPATIBILITY - Seamlessly integrates with any DC system from 3V to 24V for ultimate flexibility.

The 3PCS DC 3-24V Active Piezo Electronic Buzzers deliver a robust 90dB continuous alarm tone powered by a wide voltage range (3-24V DC). Compact and easy to install, these buzzers activate instantly upon power-up without additional drivers. Ideal for vehicle security or custom alert systems, they combine reliability with a 1-year warranty, making them a smart upgrade for any professional or DIY enthusiast.

Specifications

ASIN	B08SL2HH65
Audible Noise	90 db
Best Sellers Rank	#9,570 in Electronics ( See Top 100 in Electronics ) #24 in Security Horns & Sirens
Brand	WEICHUANG
Color	black
Compatible Devices	DC Powered Devices
Control Method	Touch
Customer Reviews	4.4 4.4 out of 5 stars (348)
Item Dimensions L x W x H	1.18"L x 1.18"W x 0.59"H
Item Weight	0.02 kg
Manufacturer	WEICHUANGJING
Mfr Part Number	SFM-27-W
Model Number	SFM-27-W
Mounting Type	Wall Mount
Number of Items	3
Power Source	DC Powered
Sensor Technology	Piezoelectric Sensor
Size	30 X 15mm
UPC	788470969590
Voltage	24 volts

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HK$85

Duties & taxes included

In stock

Sold byAmazon Hong KongDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Hong Kong.

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

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