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.Duty & taxes paid at delivery

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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 voltage range

🔊90dB loudness at 12V

🔋Low 15mA current at 12V

€ 12.39

Duties & taxes included

In stock

Sold byAmazon AustriaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🔔 Elevate your alert game with the buzzer that never misses a beat!

COMPACT DURABLE - Sleek 30x15mm size built to withstand -20°C to 60°C for reliable all-weather use.
POWERFUL 90 D B ALERT - Cut through noise with a piercing 90dB beep that commands attention instantly.
PLUG PLAY SIMPLICITY - Active piezo buzzer sounds immediately when powered—no extra drivers needed.
ENERGY EFFICIENT DESIGN - Consumes just 15mA at 12V, maximizing performance without draining power.
VERSATILE VOLTAGE COMPATIBILITY - Seamlessly operates across a broad 3-24V DC range to fit diverse setups.

The WEICHUANG SFM-27-W is a compact, active piezoelectric buzzer delivering a sharp 90dB continuous tone at 12V DC. Supporting a wide voltage range from 3 to 24V and drawing only 15mA at 12V, it offers energy-efficient, plug-and-play operation. Designed for durability withstanding temperatures from -20°C to 60°C, this 3-piece set is perfect for vehicle alarms and security systems, backed by a 1-year warranty.

Specifications

ASIN	B08SL2HH65
Audible Noise	90 db
Best Sellers Rank	#9,726 in Electronics ( See Top 100 in Electronics ) #26 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 (350)
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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