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

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

C$774

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Description

🔔 Elevate your alert game—never miss a beat with the SFM-27-W buzzer!

COMPACT DISCREET - Slim 30x15mm footprint fits effortlessly into any security or vehicle setup.
RELIABLE DURABLE - Built to perform from -20°C to 45°C with a 1-year warranty for peace of mind.
POWERFUL 90 D B ALARM - Cut through noise with crystal-clear alerts that demand attention.
PLUG PLAY SIMPLICITY - Active buzzer design means instant sound on power-up—no extra drivers needed.
VERSATILE VOLTAGE RANGE - Seamlessly operates from 3V up to 24V DC for ultimate compatibility.

The SFM-27-W is a high-decibel (90dB) active piezoelectric buzzer designed for DC power supplies ranging from 3V to 24V. Compact and easy to install, it delivers continuous sound immediately upon power-up without additional drivers. Ideal for vehicle alarms and security systems, it operates reliably across a wide temperature range and comes with a 1-year quality warranty.

Specifications

ASIN	B08SL2HH65
Audible Noise	90 Decibels
Best Sellers Rank	#9,226 in Electronics ( See Top 100 in Electronics ) #23 in Security Horns & Sirens
Brand	WEICHUANG
Color	black
Compatible Devices	DC Powered Devices
Control Method	Touch
Customer Reviews	4.5 out of 5 stars 327 Reviews
Item Dimensions L x W x H	1.18"L x 1.18"W x 0.59"H
Item Weight	0.02 Kilograms
Manufacturer	WEICHUANGJING
Mfr Part Number	SFM-27-W
Model Number	SFM-27-W
Mounting Type	Wall Mount
Power Source	DC Powered
Product Dimensions	1.18"L x 1.18"W x 0.59"H
Sensor Technology	Piezoelectric Sensor
UPC	788470969590
Voltage	24 Volts

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C$774

Duties & taxes included

In stock

Sold byAmazon NicaraguaDelivered 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 Nicaragua.

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

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