---
product_id: 63394879
title: "2V 3V 5V 6V 9V 12V DC Piezo Electronic Buzzer Very Load Alarm Electric Security Siren Horn 120dB@12VDC"
brand: "tokatuker"
price: "€ 17.31"
currency: EUR
in_stock: true
reviews_count: 8
category: "Tokatuker"
url: https://www.desertcart.it/products/63394879-2v-3v-5v-6v-9v-12v-dc-piezo-electronic-buzzer
store_origin: IT
region: Italy
---

# 120dB max volume 2-12V DC compatible Sticker or screw mount 2V 3V 5V 6V 9V 12V DC Piezo Electronic Buzzer Very Load Alarm Electric Security Siren Horn 120dB@12VDC

**Brand:** tokatuker
**Price:** € 17.31
**Availability:** ✅ In Stock

## Summary

> 🔔 Make your security impossible to ignore!

## Quick Answers

- **What is this?** 2V 3V 5V 6V 9V 12V DC Piezo Electronic Buzzer Very Load Alarm Electric Security Siren Horn 120dB@12VDC by tokatuker
- **How much does it cost?** € 17.31 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.it](https://www.desertcart.it/products/63394879-2v-3v-5v-6v-9v-12v-dc-piezo-electronic-buzzer)

## Best For

- tokatuker enthusiasts

## Why This Product

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

## Key Features

- • **Compact Powerhouse:** Small 54mm diameter fits discreetly while packing a punch
- • **Unmatched Loudness:** 120dB peak sound level commands attention instantly
- • **Dual Mounting Options:** Secure with adhesive sticker or screws to fit any environment
- • **Flexible Voltage Range:** Operates seamlessly from 2V up to 12V DC for versatile setups
- • **Plug & Play Convenience:** 3.5mm plug connector ensures quick, hassle-free installation

## Overview

This compact yet powerful piezo buzzer delivers an ear-piercing 120dB alarm at 12V DC, with effective loudness even at lower voltages like 3V and 5V. Designed for easy installation via a 3.5mm plug or wire extension, it mounts securely using either adhesive or screws. Ideal for home or office security, it’s a reliable deterrent that ensures your space stands out with unmistakable alert signals.

## Description

120dB@12VDC, it will less dB when at low voltage, but it's very loud@5VDC, and it's loud@3VDCPlease insert the plug into the panel and fix it by sticker paper or screw.You can also cut the wire and extend it.At 120dbs, this siren will not only alert the neighbors of the intrusion, but scare away the burglar right out of your house!Specifications:Rated voltage: 12V DCSound level: 120dBSound frequency: 3.8KH2+10%Transmit speed: 3H2 increase or discrease 10%Material: PlasticColor: Black&RedSize: diameter 54mm, height 48mm

Review: impressively LOUD - Wear Hearing Protection! - I don't know how they can get such a loud sound out of such a small package but this thing delivers. Be very careful when testing this, it is loud enough to damage your hearing when close to it. Makes an excellent burglar alarm, should drive them away. Put one of these in every room of your house and they won't be able to tolerate being in there. I almost took off a star because of the plug and no documentation. But simplest is to just cut it off - however that would prevent you from returning it if you decided it wasn't loud enough ha ha. Anyway I found that tip is positive and the sleeve is negative. It survived having the voltage reversed. I only tested it at 12 volts. If it is too loud for your needs then you should be able to reduce the voltage for less volume.
Review: Works great, loud - I have a stand alone remote controlled motion alarm. I plugged this siren in and mounted it in the next room. Installation done. This little siren is loud. It is a different pitch than my other alarm and between the two it is uncomfortably loud. I definitely recommend this siren if you have a device that it can plug into. All the wifi smart security system cameras are great for helping the cops find the perps after your house has been robbed or you have been killed. A few now have sirens in addition to all their cameras. Did you know that you can buy wifi jammers on the inter net that nullify your wifi security system? Buy a couple of battery operated or battery backup stand alone non wifi old school motion alarms for the rooms where your outside doors are. Even high tech crooks don't like loud alarm noise.

## Features

- DC2 to 12V Alarm Siren with 3.5mm Plug Connector
- 120dB@12VDC, it's loud even at 3V or 5VDC
- Plug connector inner is anode,out is cathode or cut off, Red is Anode, Black is Cathode
- Can mount by Sticker or Screws
- What you get:1xAlarm Siren with sticker

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B079L2KBG7 |
| Batteries Included? | No |
| Batteries Required? | No |
| Best Sellers Rank | #66,969 in Electronics ( See Top 100 in Electronics ) #257 in Security Horns & Sirens |
| Control Method | Touch |
| Customer Reviews | 4.5 4.5 out of 5 stars (199) |
| Date First Available | February 4, 2018 |
| Is Discontinued By Manufacturer | No |
| Item Package Quantity | 1 |
| Item Weight | 2.08 ounces |
| Item model number | BT-604-2 |
| Manufacturer | Bestgo |
| Mounting Type | Sticker |
| Noise Level | 120 Decibels |
| Part Number | BT-604-2 |
| Product Dimensions | 2.13 x 2.13 x 1.89 inches |
| Size | B604 |

## Product Details

- **Brand:** Tokatuker
- **Color:** Black
- **Power Source:** Corded Electric
- **Product Dimensions:** 2.13"L x 2.13"W x 1.89"H
- **Voltage:** 12 Volts

## Images

![2V 3V 5V 6V 9V 12V DC Piezo Electronic Buzzer Very Load Alarm Electric Security Siren Horn 120dB@12VDC - Image 1](https://m.media-amazon.com/images/I/51L61udkmzL.jpg)

## Questions & Answers

**Q: Will this unit #b604 work on a 5v dc input and still be loud ? and when connecting to 5v dc which is negative and positive anode or cathode ?**
A: It work at 5V DC, and it's very loud.  Red wire is positive(first pole at jack)

**Q: I need to buy a power pack to run this how many amps will this siren draw from the power pack?**
A: yes. The working current is 100mA at 5VDC power bank, it's 50mA at 3VDC.

**Q: What is the current range this can handle?  I don't see it listed.

This laptop 110v->12v power cable is rated 8 amps.. I'm sure that's too high.**
A: I dont know what do you mean with range . I'm a B103 User , so I dont have  this power cable , I have just the wires connected to a WiFi plug and in case of movement (detected by a sensor in a defined room and when nobody is at home) siren is activated automatically . (just an idea about possible use)

**Q: Where do you connect the 3.5mm? If i uave a 3prong smart plug, how do i connect this?**
A: You should add a power adapter(12V DC) or 5VDC(phone charger), and because the siren work at 2 to 12VDC. The power from plug is 110VAC.

## Customer Reviews

### ⭐⭐⭐⭐⭐ impressively LOUD - Wear Hearing Protection!
*by E***K on February 18, 2023*

I don't know how they can get such a loud sound out of such a small package but this thing delivers. Be very careful when testing this, it is loud enough to damage your hearing when close to it. Makes an excellent burglar alarm, should drive them away. Put one of these in every room of your house and they won't be able to tolerate being in there. I almost took off a star because of the plug and no documentation. But simplest is to just cut it off - however that would prevent you from returning it if you decided it wasn't loud enough ha ha. Anyway I found that tip is positive and the sleeve is negative. It survived having the voltage reversed. I only tested it at 12 volts. If it is too loud for your needs then you should be able to reduce the voltage for less volume.

### ⭐⭐⭐⭐⭐ Works great, loud
*by P***N on November 27, 2024*

I have a stand alone remote controlled motion alarm. I plugged this siren in and mounted it in the next room. Installation done. This little siren is loud. It is a different pitch than my other alarm and between the two it is uncomfortably loud. I definitely recommend this siren if you have a device that it can plug into. All the wifi smart security system cameras are great for helping the cops find the perps after your house has been robbed or you have been killed. A few now have sirens in addition to all their cameras. Did you know that you can buy wifi jammers on the inter net that nullify your wifi security system? Buy a couple of battery operated or battery backup stand alone non wifi old school motion alarms for the rooms where your outside doors are. Even high tech crooks don't like loud alarm noise.

### ⭐⭐⭐⭐⭐ When they say it's loud at 3V, they mean it!
*by M***R on August 11, 2019*

I bought this as part of a DIY FloodLight system that I'm building. This will be the siren that I will be able to trigger, either by motion or remotely. I had no idea what to expect really. I received it and took it out of the box and was impressed with the build quality - I was expecting something much cheaper feeling. For the price it's actually well constructed. Next, being impatient, I just grabbed a used AA battery (maybe it had ~1.2V charge on it) and just connected both ends of the siren to it (after snipping off the 3.5mm jack connector - save it for later if I need it). Even at 1.2V it had decent volume and was good to alert someone indoors in the same vicinity. Probably not going to hear it out doors but I was impressed that even at 1.2V it was a respectable "noise" level. I then got out my power generator and connected it up and started cranking the voltage up - after around 2.2V it became VERY loud. I increased it to 3.3V (which would be the output level of my esp8266 mcu) and it was VERY LOUD, almost to the point where i needed some ear protection. My wife started nodding - yeah, that's definitely going to frighten away anyone nosing around our front porch. I stopped there because I was indoors. I'm shuddering to think (in a good way) how loud this will get at 5V, or even the full 12V. So very pleased with this unit, so pleased that right after this review I'm going to buy another 1-2 units. It's nice to know I could potentially power it from a single AA battery all the way up to a full 12V. Highly recommend!

## Frequently Bought Together

- 2V 3V 5V 6V 9V 12V DC Piezo Electronic Buzzer Very Load Alarm Electric Security Siren Horn 120dB@12VDC
- Tokatuker DC9 to 12V Wired Strobe Siren Red Light Sound Flash Buzzer Siren Home Security Alarm System Electric Security Siren 110dB@12V DC
- SmoTecQ 12V 2A Power Supply AC Adapter 2 Pack for CCTV Security Camera, Led Strip Lights, Router, Printer, Breast Bump and Other 12 Volt Electronics Devices Less Than 2 Amp

---

## Why Shop on Desertcart?

- 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016
- 🌍 **Shop Globally** — Access 737+ million products across 21 categories
- 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price
- 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members)
- 🔒 **Secure Payments** — Trusted payment options with buyer protection
- ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews

**Shop now:** [https://www.desertcart.it/products/63394879-2v-3v-5v-6v-9v-12v-dc-piezo-electronic-buzzer](https://www.desertcart.it/products/63394879-2v-3v-5v-6v-9v-12v-dc-piezo-electronic-buzzer)

---

*Product available on Desertcart Italy*
*Store origin: IT*
*Last updated: 2026-02-26*