---
product_id: 375174557
title: "Wireless Home Security Burglar Alarm, Magnetic Sensor Door Window Alarm, Super Loud 110dB, Pool Door Alarm for Kids Pack of 4"
brand: "hendun"
price: "€ 73.88"
currency: EUR
in_stock: true
reviews_count: 5
url: https://www.desertcart.pt/products/375174557-wireless-home-security-burglar-alarm-magnetic-sensor-door-window-alarm
store_origin: PT
region: Portugal
---

# 110dB Alarm Long-lasting Battery Magnetic Sensor Wireless Home Security Burglar Alarm, Magnetic Sensor Door Window Alarm, Super Loud 110dB, Pool Door Alarm for Kids Pack of 4

**Brand:** hendun
**Price:** € 73.88
**Availability:** ✅ In Stock

## Summary

> 🔔 Secure Your Space, Elevate Your Peace of Mind!

## Quick Answers

- **What is this?** Wireless Home Security Burglar Alarm, Magnetic Sensor Door Window Alarm, Super Loud 110dB, Pool Door Alarm for Kids Pack of 4 by hendun
- **How much does it cost?** € 73.88 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.pt](https://www.desertcart.pt/products/375174557-wireless-home-security-burglar-alarm-magnetic-sensor-door-window-alarm)

## Best For

- hendun enthusiasts

## Why This Product

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

## Key Features

- • **🎶 Versatile Chime Mode:** Receive gentle notifications when children or guests open doors, ensuring peace of mind.
- • **🔊 Unmatched Sound Power:** Experience a thunderous 110dB alarm that not only deters intruders but also alerts your neighbors!
- • **🔋 Effortless Installation:** Set up in minutes! Perfect for pool doors, refrigerators, and more—keeping your loved ones safe.
- • **🛡️ 4-in-1 Functionality:** Enjoy the convenience of an alarm, door hint, and doorbell all in one compact device!
- • **🔒 Smart Magnetic Activation:** Stay secure with a magnetic sensor that triggers the alarm when doors or windows are opened.

## Overview

This Wireless Home Security Burglar Alarm pack includes four powerful 110dB alarms with magnetic sensors designed for easy installation on doors and windows. Ideal for enhancing safety around children and vulnerable individuals, it features a chime mode for notifications and a long-lasting battery for continuous protection.

## Description

Wireless Home Security Burglar Alarm, Magnetic Sensor Door Window Alarm, Super Loud 110dB, Pool Door Alarm for Kids Pack of 4

## Features

- Loud 110dB-enough to scare the intruder or notify neighbors.
- CHIME MODE - is ideal to prompt you when child, guests or dementia patients are opening the door.
- ALARM ACTIVATED - when the parts are separated, recombined stops.
- EASILY INSTALLATED - in pool doors/refrigerator/drawer/freezers for kids safety. battery can last longer.
- 4 IN 1 - It has the function of alarm constant alarm closing-door hint and doorbell.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Battery Description | Alkaline |
| Number of Batteries | 3 LR44 batteries required. (included) |
| Voltage | 4.5 Volts |
| Control Method | Touch |
| Noise Level | 110 dB |
| Mounting Type | self-adhesive |
| Sensor Technology | Contact Sensor |
| UPC | 664248632432 |
| Manufacturer | Changzhou Hengdun Electronic Technology Co Ltd |
| Part Number | SF19 |
| Item Weight | 1.25 ounces |
| Product Dimensions | 1.97 x 1.57 x 0.59 inches |
| Item model number | SF19 |
| Batteries | 3 LR44 batteries required. (included) |
| Is Discontinued By Manufacturer | No |
| Size | small |
| Shape | Square |
| Installation Method | Self-Adhesive |
| Item Package Quantity | 1 |
| Switch Style | Slide switch |
| Special Features | Easy to Install |
| Batteries Included? | Yes |
| Batteries Required? | Yes |
| Battery Cell Type | Alkaline |
| Description Pile | Alkaline |

## Product Details

- **Color:** White
- **Brand:** HENDUN
- **Power Source:** Battery Powered
- **Compatible Devices:** Home Security System
- **Product Dimensions:** 1.97"L x 1.57"W x 0.59"H

## Images

![Wireless Home Security Burglar Alarm, Magnetic Sensor Door Window Alarm, Super Loud 110dB, Pool Door Alarm for Kids Pack of 4 - Image 1](https://m.media-amazon.com/images/I/71k4MKWbGZL.jpg)
![Wireless Home Security Burglar Alarm, Magnetic Sensor Door Window Alarm, Super Loud 110dB, Pool Door Alarm for Kids Pack of 4 - Image 2](https://m.media-amazon.com/images/I/51KqkDCa5nL.jpg)
![Wireless Home Security Burglar Alarm, Magnetic Sensor Door Window Alarm, Super Loud 110dB, Pool Door Alarm for Kids Pack of 4 - Image 3](https://m.media-amazon.com/images/I/619kLWu04bL.jpg)
![Wireless Home Security Burglar Alarm, Magnetic Sensor Door Window Alarm, Super Loud 110dB, Pool Door Alarm for Kids Pack of 4 - Image 4](https://m.media-amazon.com/images/I/61Mw7oDWOdL.jpg)
![Wireless Home Security Burglar Alarm, Magnetic Sensor Door Window Alarm, Super Loud 110dB, Pool Door Alarm for Kids Pack of 4 - Image 5](https://m.media-amazon.com/images/I/61dm2hBsZEL.jpg)

## Questions & Answers

**Q: Can someone please explain how to use the chime or doorbell mode? No matter what I do I can’t get them to set right.**
A: The description may not be very clear. But it's really switchable. Let me give you more details.
Push the switch in the OFF position (down), open the batteries box, take out the battery, reload the batteries, and cover the batteries cover. PUT THE MAGNET CLOSE TO THE HOST. 
Push the switch to ON position (up), then you will hear the first sound  (default mode), which is alarm mode. 
Within 3 seconds, when you push the switch from OFF  to ON, you will hear the second sound-continuous alarm mode;
Within 3 seconds, when you push the switch from OFF  to ON,  you will hear the third sound-reminding closing mode; 
Within 3 seconds, when you push the switch from OFF  to ON, you will hear the fourth sound-the doorbell mode.
At this time, separate the small magnet, will emit a doorbell sound.
After the mode has been set, if the switch is switched on to OFF again, the sound mode will be restored to the default alarm mode. In order to change the sound mode, it needs to be reset according to the above method.

**Q: Are these packaged separate?**
A: Yes, there are four separate packages.

**Q: Our freezer door was left open again. would this work to let us know it was left open. can i turn it off when i need to get into the freezer?**
A: If you turn it off to open the freezer and don’t turn it back on it won’t help remind you to close it. 
If you choose to keep it on it will make a sound (dependent on the setting you have it on) until the door is shut again.

**Q: can we get new batteries after it stop working?**
A: Thank you for your question. 
When the product arrives, three AG13(LR44)  batteries are combined. It's not a special battery. this is it, https://www.amazon.com//dp/B07Q16ZPFC .
When you need to replace the batteries, you only need to put in three separate batteries.
 I hope the above can help you.

## Customer Reviews

### ⭐⭐⭐⭐⭐ 







  
  
    Works perfectly
  

*by S***Y on Reviewed in the United States on 20 July 2023*

Bought for my parents.  Does install easily and are loud.  Perfect!

### ⭐⭐⭐⭐⭐ 







  
  
    Secure
  

*by M***H on Reviewed in the United States on 5 July 2023*

Really easy to install. Very loud. We have them on both windows and doors. Makes me feel prepared.

### ⭐⭐⭐⭐⭐ 







  
  
    Easy to install and LOUD!
  

*by D***W on Reviewed in the United States on 22 March 2023*

Needed to install an alarm anytime someone opened a door. At first didn't have high expectations considering the price point, but it definitely beat it. There is also a switch so you can disarm the alarm as needed.It came with everything needed to get it up and running. The battery and double sided tape are included with each set.Would recommend wearing ear plugs during the initial install as its quite loud.Overall quite happy with my purchase.

## Frequently Bought Together

- Wireless Home Security burglar alarm, Magnetic Sensor Door Window Alarm, Super Loud 110dB, Pool Door Alarm for Kids Pack of 4
- HENDUN Wireless Door Alarms When Opened with Remote, Door Security Sensor, Pool Alarm for Kids Safety, Sliding (2 Pack)
- HENDUN Home Security Door Alarms, 10 Pack,Updated Magnetic Sensor Alert, Window Alarms, Pool Door Alarm for Kids

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*Product available on Desertcart Portugal*
*Store origin: PT*
*Last updated: 2026-03-17*