---
product_id: 48443081
title: "Defender Shock Contact Alarm - Wireless Shed Garage Alarm 130dB Siren - Internal Burglar Siren for Sheds Garages - Wireless Magnetic Contact For Doors - Batteries Included"
brand: "defender"
price: "1453603₫"
currency: VND
in_stock: true
reviews_count: 8
url: https://www.desertcart.vn/products/48443081-defender-shock-contact-alarm-wireless-shed-garage-alarm-130db-siren
store_origin: VN
region: Vietnam
---

# 100% wireless, no drilling needed 130dB ultra-loud siren Batteries included, ready out-of-box Defender Shock Contact Alarm - Wireless Shed Garage Alarm 130dB Siren - Internal Burglar Siren for Sheds Garages - Wireless Magnetic Contact For Doors - Batteries Included

**Brand:** defender
**Price:** 1453603₫
**Availability:** ✅ In Stock

## Summary

> 🚨 Defend your domain with the alarm that means business!

## Quick Answers

- **What is this?** Defender Shock Contact Alarm - Wireless Shed Garage Alarm 130dB Siren - Internal Burglar Siren for Sheds Garages - Wireless Magnetic Contact For Doors - Batteries Included by defender
- **How much does it cost?** 1453603₫ with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.vn](https://www.desertcart.vn/products/48443081-defender-shock-contact-alarm-wireless-shed-garage-alarm-130db-siren)

## Best For

- defender enthusiasts

## Why This Product

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

## Key Features

- • **Hassle-Free Wireless Setup:** Stick or screw it in place—no wires, no mess, just secure in minutes.
- • **Smart 4-Digit Code Control:** Personalize your security with easy arming/disarming and timed entry delays.
- • **Shockingly Loud 130dB Siren:** Instantly deters intruders with ear-piercing volume that neighbors won’t ignore.
- • **Compact & Lightweight Design:** Discreet steel alloy build fits seamlessly on doors or sheds without bulk.
- • **Police-Recognized Reliability:** Secured by Design & Sold Secure accredited for trusted, professional-grade protection.

## Overview

The Defender Shock Contact Alarm is a wireless, battery-powered security solution designed for sheds, garages, and caravans. Featuring a powerful 130dB siren, easy adhesive or screw installation, and a user-friendly 4-digit code system with entry/exit delays, it offers professional-grade protection recognized by police security standards. Compact and lightweight, it’s ready to secure your space straight out of the box.

## Description

Defender Shock Contact Alarm - Wireless Shed Garage Alarm 130dB Siren - Internal Burglar Siren for Sheds Garages - Wireless Magnetic Contact For Doors - Batteries Included : desertcart.co.uk: DIY & Tools

Review: Great, and effective alarm that is easy to install at a very reasonable price. - Easy to set up, installing use. Wow it’s loud! Definitely enough to alert me from the house, from my shed, and shock any potential thief and cause them enough pain to deter them. 30 seconds to arm is plenty of time but would like longer to disarm than 5 seconds, it has gone off a couple of times due to a seconds delay. I find the sensor enough to set off the alarm but not to sensitive to cause it to go off unnecessarily. I would highly recommend.
Review: Very loud alarm ! - Very loud, easely understood instructions and easy to follow. The programming of my own code was done in one go and installation was simple using the very strong double sided tape. I have only given 4 stars as on occasion on entering the disarm code, it has had to be done twice with the alarm shrieking at you, not to much of a problem, but at 6 in the morning the neighbors might not now be my fans. Overall a very good alarm for not a lot of money.

## Features

- DEFENDER SHED ALARM - A dual-function wire-free alarm that allows you to secure sheds, garages, caravans and more.
- LOUD SIREN - The alarm triggers a powerful 130dB siren to protect against forced entry and sneak-in attempts.
- EASY INSTALLATION - This wire-free alarm comes with an adhesive pad and screws for easy installation.
- SIMPLE SECURITY - Use a 4-digit code to arm and disarm the unit. Featuring a 5-second entry delay and a 30-second exit delay for ultimate protection.
- POLICE RECOGNISED STANDARDS - The first of its type to achieve the coveted Secured by Design & Sold Secure accreditations, which ensures high quality and reliability.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B019CNLT2S |
| Batteries | 3 AAA batteries required. (included) |
| Batteries Required? | Yes |
| Batteries included? | Yes |
| Battery Cell Type | Alkaline |
| Best Sellers Rank | 222,108 in DIY & Tools ( See Top 100 in DIY & Tools ) 183 in Home Security Door & Window Sensors |
| Control method | Touch |
| Customer Reviews | 4.0 4.0 out of 5 stars (1,636) |
| Date First Available | 14 Dec. 2015 |
| Item Package Quantity | 1 |
| Item Weight | 114 g |
| Item model number | EL00147 |
| Item weight | 114 Grams |
| Manufacturer | Solon Security |
| Material | Steel alloy |
| Mounting type | Tabletop Mount, Door Mount |
| Noise level | 110 Decibels |
| Number of batteries | 3 AAA batteries required. (included) |
| Part Number | EL00147 |
| Product Dimensions | 8 x 5 x 2.2 cm; 114 g |
| Sensor technology | Vibration Sensor, Contact Sensor |

## Product Details

- **Battery description:** Alkaline
- **Brand:** Defender
- **Colour:** Black
- **Power source:** Battery Powered
- **Product dimensions:** 8L x 5W x 2.2H centimetres

## Images

![Defender Shock Contact Alarm - Wireless Shed Garage Alarm 130dB Siren - Internal Burglar Siren for Sheds Garages - Wireless Magnetic Contact For Doors - Batteries Included - Image 1](https://m.media-amazon.com/images/I/31b9oEqV-yL.jpg)
![Defender Shock Contact Alarm - Wireless Shed Garage Alarm 130dB Siren - Internal Burglar Siren for Sheds Garages - Wireless Magnetic Contact For Doors - Batteries Included - Image 2](https://m.media-amazon.com/images/I/413uWT4XSKL.jpg)
![Defender Shock Contact Alarm - Wireless Shed Garage Alarm 130dB Siren - Internal Burglar Siren for Sheds Garages - Wireless Magnetic Contact For Doors - Batteries Included - Image 3](https://m.media-amazon.com/images/I/41yP63eLA+L.jpg)
![Defender Shock Contact Alarm - Wireless Shed Garage Alarm 130dB Siren - Internal Burglar Siren for Sheds Garages - Wireless Magnetic Contact For Doors - Batteries Included - Image 4](https://m.media-amazon.com/images/I/51Bkq1IE1EL.jpg)
![Defender Shock Contact Alarm - Wireless Shed Garage Alarm 130dB Siren - Internal Burglar Siren for Sheds Garages - Wireless Magnetic Contact For Doors - Batteries Included - Image 5](https://m.media-amazon.com/images/I/51Ilq+IN8bL.jpg)

## Questions & Answers

**Q: Can it be used as a gate alarm the instructions say indoor only**
A: I would not. It is designed for indoor use and has no protection against the weather.

**Q: Is this item waterproof for mounting externally?**
A: Tried the shrink wrap method and it worked for a while. I have now used a condom and is 100% water proof and the solar panel still works.

**Q: Has anyone used this on the front door  inside of their house?**
A: Dont see why not Jessica, mine is on the garage door once it's set up you just press number 4 whenever you leave to arm the alarm and when you return just put your chosen code in to disarm.

**Q: How far for sensor can siren be ?**
A: As stated on the listing, the gap between the magnetic contact and the alarm should be within 10mm.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Great, and effective alarm that is easy to install at a very reasonable price.
*by E***E on 17 June 2020*

Easy to set up, installing use. Wow it’s loud! Definitely enough to alert me from the house, from my shed, and shock any potential thief and cause them enough pain to deter them. 30 seconds to arm is plenty of time but would like longer to disarm than 5 seconds, it has gone off a couple of times due to a seconds delay. I find the sensor enough to set off the alarm but not to sensitive to cause it to go off unnecessarily. I would highly recommend.

### ⭐⭐⭐⭐ Very loud alarm !
*by D***D on 23 November 2016*

Very loud, easely understood instructions and easy to follow. The programming of my own code was done in one go and installation was simple using the very strong double sided tape. I have only given 4 stars as on occasion on entering the disarm code, it has had to be done twice with the alarm shrieking at you, not to much of a problem, but at 6 in the morning the neighbors might not now be my fans. Overall a very good alarm for not a lot of money.

### ⭐⭐⭐⭐⭐ very loud and visually would act as a deterant .
*by H***D on 25 September 2019*

fitting the unit was very simple the alarm can be screwed into position or stuck with very strong adhesive pads. I choose to screw mine into the office door. once fitted and the alarm set I'm sure it would deter the opportunist thief. However if they did decide to give it a go they would be met with a very loud shrill alarm that if to close is deafening. My only dislike is that the keys are very sensitive and when punching in the code to unlock I have set the alarm off a couple of times ,however its easily remedied by putting in the code again. the doors to my garden office\studio are under a covered porch affording the doors protection from the weather extremes .like all sticky pads im not sure how long the would last if used in all weathers and on a rough surface such as a shed door .I will be getting one for my shed ,but I will fix a small piece of smooth plastic on which the unit should have perfect adhesion .to summarise a very simple yet extremely effective alarm which has the additional advantage of also being a visual deterrent. . very happy with this unit and would happily recommend it to friends and family .

## Frequently Bought Together

- Defender Shock Contact Alarm - Wireless Shed Alarm 130dB Siren - Garage Alarm - Internal Burglar Alarm for Sheds Garages - Wireless Magnetic Contact Alarm for Doors - Batteries Included
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*Product available on Desertcart Vietnam*
*Store origin: VN*
*Last updated: 2026-05-18*