---
product_id: 389922810
title: "5PCS SFM-27 DC 3-24V Alarm Siren Electronic Piezo Active Buzzer, 95dB High Decibel Continuous Beep Speaker for Arduino,Black"
brand: "stemedu"
price: "4408 som"
currency: KGS
in_stock: true
reviews_count: 2
url: https://www.desertcart.kg/products/389922810-5pcs-sfm-27-dc-3-24v-alarm-siren-electronic-piezo
store_origin: KG
region: Kyrgyzstan
---

# 3-24V Voltage Range Compact Size 29mm 95dB High Decibel 5PCS SFM-27 DC 3-24V Alarm Siren Electronic Piezo Active Buzzer, 95dB High Decibel Continuous Beep Speaker for Arduino,Black

**Brand:** stemedu
**Price:** 4408 som
**Availability:** ✅ In Stock

## Summary

> 🔊 Sound the Alarm: Elevate Your Projects with Power!

## Quick Answers

- **What is this?** 5PCS SFM-27 DC 3-24V Alarm Siren Electronic Piezo Active Buzzer, 95dB High Decibel Continuous Beep Speaker for Arduino,Black by stemedu
- **How much does it cost?** 4408 som with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.kg](https://www.desertcart.kg/products/389922810-5pcs-sfm-27-dc-3-24v-alarm-siren-electronic-piezo)

## Best For

- stemedu enthusiasts

## Why This Product

- Trusted stemedu brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **🌟 Compact Design:** Small yet mighty, fitting perfectly in any project without bulk.
- • **📦 Value Pack of 5:** Stock up with five buzzers for all your DIY and automotive projects.
- • **🔔 Unmatched Sound Power:** Experience a booming 95dB alarm that commands attention!
- • **🛠️ Perfect for DIY Enthusiasts:** Ideal for car modifications and electronic reminders.
- • **🔌 Versatile Voltage Compatibility:** Seamlessly operates between 3-24V for diverse applications.

## Overview

The Stemedu 5PCS SFM-27 DC 3-24V Alarm Siren Electronic Piezo Active Buzzer is a compact yet powerful sound solution, delivering a high-decibel alarm of 95dB. Designed for versatility, it operates within a voltage range of 3-24V, making it perfect for various applications, from DIY electronics to automotive modifications. Each package includes five buzzers, ensuring you have ample sound power for all your projects.

## Description

5PCS SFM-27 DC 3-24V Alarm Siren Electronic Piezo Active Buzzer, 95dB High Decibel Continuous Beep Speaker for Arduino,Black

## Features

- 🚩 [Voltage Range]: Operating Voltage: 3-24V. Rated Voltage: 12V.
- 🚩 [Small Size]: Alarm Diameter: 29mm/ 1.14", Height: 15mm/ 0.59", with 2-wire pigtails
- 🚩 [95DB High Decibel]: This mini electronic beeper support DC 3-24V power supply and produce continuous high-decibel alarm sound up to 95dB
- 🚩 [Widely Usage]: In the car modification, DIY electronics reminder projects or other area needs sound alarm.
- 🚩 [Package]: You will get 5pcs 95DB black active buzzers

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Voltage | 24 Volts |
| Control method | Touch |
| Noise level | 95 dB |
| Mounting type | Wall Mount |
| Manufacturer | Stemedu |
| Part Number | ST3486X5 |
| Product Dimensions | 2.9 x 2.9 x 1.5 cm; 32 g |
| Item model number | ST3486X5 |
| Item Package Quantity | 1 |
| Included Components | DC 3-24V Electronic Buzzer Alarm Sounder Continuous Beep 5PCS |
| Batteries included? | No |
| Batteries Required? | No |
| Item Weight | 32 g |

## Product Details

- **Colour:** Black
- **Brand:** Stemedu
- **Power source:** Corded Electric
- **Compatible devices:** Electronic Security Systems
- **Product dimensions:** 29L x 29W x 15H millimetres

## Images

![5PCS SFM-27 DC 3-24V Alarm Siren Electronic Piezo Active Buzzer, 95dB High Decibel Continuous Beep Speaker for Arduino,Black - Image 1](https://m.media-amazon.com/images/I/61ohmr7xgtS.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Great buy
*by M***. on 28 October 2023*

These are decent low voltage buzzer, I use it at 12V.I bought another type of low voltage DC buzzers from Amazon that I use for alarm notification when certain temperature is reached. but wanted a different sound for different temperature.Would recommend this

### ⭐⭐⭐⭐ Not bad, but falls slightly short of specs.
*by P***R on 23 October 2023*

I've used piezo crystal buzzers before on simple projects, and at low voltages they tend to be very quiet. I thought I'd give these a try to see how loud they are at lower voltages.This buzzer just needs a voltage, no control is required. This means it's simple to use, but only outputs a single tone.Firstly, at 12v, this is pretty loud. Not sure if it's 95db, but it's uncomfortable. It also does operate at 3v but noticeably quieter, yet still louder than other piezo buzzers. There is a caveat to this however. The buzzer doesn't start to operate until about 4.8v is applied (according to my benchtop power supply). Once sounding you can drop the voltage to 3v with no problems and it keeps going.As for power consumption, it's around 4ma per 3v. So ~4mah @ 3v, ~8mah @ 6v, ~17mah @ 12v (again according to my benchtop power supply).If it operated properly at 3v this would be 5*, but I have to drop a star because it won't start buzzing @ 3v.

## Frequently Bought Together

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*Product available on Desertcart Kyrgyzstan*
*Store origin: KG*
*Last updated: 2026-02-21*