---
product_id: 54355621
title: "115db DIY Wireless Home Security System,Indoor Outdoor Weather-Proof Siren,Window Door Sensors Motion Sensor,Shed Garage Alarm with Remote Control,Burglar Door Alarm for Hotel Shop House"
brand: "kerui"
price: "€ 97.25"
currency: EUR
in_stock: true
reviews_count: 13
category: "Kerui"
url: https://www.desertcart.pt/products/54355621-115db-diy-wireless-home-security-system-indoor-outdoor-weather-proof
store_origin: PT
region: Portugal
---

# Supports 30 wireless detectors 115dB ultra-loud siren Weather-proof for indoor/outdoor 115db DIY Wireless Home Security System,Indoor Outdoor Weather-Proof Siren,Window Door Sensors Motion Sensor,Shed Garage Alarm with Remote Control,Burglar Door Alarm for Hotel Shop House

**Brand:** kerui
**Price:** € 97.25
**Availability:** ✅ In Stock

## Summary

> 🔐 Elevate your home security game—because peace of mind is the ultimate luxury.

## Quick Answers

- **What is this?** 115db DIY Wireless Home Security System,Indoor Outdoor Weather-Proof Siren,Window Door Sensors Motion Sensor,Shed Garage Alarm with Remote Control,Burglar Door Alarm for Hotel Shop House by kerui
- **How much does it cost?** € 97.25 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/54355621-115db-diy-wireless-home-security-system-indoor-outdoor-weather-proof)

## Best For

- kerui enthusiasts

## Why This Product

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

## Key Features

- • **SOS Emergency Alert:** One-press remote SOS triggers immediate neighborhood awareness for urgent help.
- • **Powerful 115dB Siren:** Instantly deters intruders with ear-piercing alerts that neighbors can't ignore.
- • **Weatherproof Durability:** Reliable protection rain or shine—perfect for garages, sheds, and outdoor spaces.
- • **Expandable Up to 30 Sensors:** Customize your security with up to 30 detectors and 8 remotes for total home control.
- • **Seamless DIY Wireless Setup:** No wiring headaches—install and expand your system effortlessly to cover every entry point.

## Overview

The KERUI 115dB DIY Wireless Home Security System offers a robust, expandable solution with up to 30 wireless sensors and 8 remote controls. Featuring a weatherproof siren that delivers a piercing 115dB alert, this system is designed for easy installation and reliable indoor/outdoor protection. Ideal for homes, garages, sheds, and small businesses, it includes door/window sensors, a PIR motion detector, and an SOS emergency function to ensure comprehensive security and quick response.

## Description

Free delivery and returns on all eligible orders. Shop KERUI 115db DIY Wireless Home Security System,Indoor Outdoor Weather-Proof Siren,Window Door Sensors Motion Sensor,Shed Garage Alarm with Remote Control,Burglar Door Alarm for Hotel Shop House.

Review: Excellent Home Security System – Easy to Install and Reliable! - I couldn't be happier with the KERUI 115db DIY Wireless Home Security System! This system is a game-changer for home security, offering a perfect balance of affordability, functionality, and ease of use. Installation was a breeze, even for someone like me with minimal DIY experience. The wireless design meant no messy wiring, and the components connected seamlessly. The 115db siren is incredibly loud and serves as an excellent deterrent for any unwanted intruders. I also appreciate that it’s weatherproof, so I can confidently use it outdoors without worry. The window and door sensors are responsive and reliable, giving me peace of mind that every entry point is monitored. I love how customizable the system is, allowing me to add or adjust components as needed. This system is perfect for anyone looking to enhance their home security without breaking the bank. Highly recommend!
Review: So easy to install - What an incredible alarm. Was being quoted £200 for call out and £250 an hour for a burglar alarm engineer to come and fix an old wired bantam alarm system. I ordered three of these alarms and they were up and running in next to no time .It took me one hour and cost under £ 100 and a much better system and so easy to use. Would recommend to all family and friends.

## Features

- Door alarm uses remote controls to set security code for arming/disarming; home security system complete with fully programmed main unit and sensors, later if you want to DIY, please factory reset first according to manual, then pair them again or search operation video on YouTube "KERUI Standalone Alarm System Operation Guide" for reference.
- DIY expandable home burglar security alarm system - This alarm horn supports up to 30 pcs wireless detectors, 8 remote controls, 4 doorbell buttons, up to 115dB loud alerts with deluxe door alarm system for peace of mind.
- Complete DIY wireless house burglar alarm system kits includes a horn work with power supply adaptor 240VAC to 9 VDC and two door/window sensors work with 23A 12V battery,two remote controls work with 23A 12V battery,a PIR motion detector work with 9V battery,loud alarm and better protection for apartment shed hotel garage safety,affordable home security.
- SOS alarm to get help - Children and seniors at home when in emergency, they can press the [🔔] button of the remote control, which will set off the siren alarm up to 115dB to notify other members at home or neighborhood, so that they can get help in time.
- After-sale service - Kindly refer to the user manual before use, if you have any questions or needs to customize alarm system kit, please feel free to contact us, we will try our best to help; The alarm system kit can work with KERUI brand alarm hub, DIY the alarm system as you require.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B019TNWA74 |
| Batteries | 7 Product Specific batteries required. (included) |
| Batteries Required? | Yes |
| Batteries included? | Yes |
| Battery Cell Type | Alkaline |
| Best Sellers Rank | 39,199 in DIY & Tools ( See Top 100 in DIY & Tools ) 66 in Home Alarm Systems |
| Colour | Red |
| Customer Reviews | 4.4 4.4 out of 5 stars (357) |
| Date First Available | 26 Dec. 2015 |
| Delivery information | We cannot deliver certain products outside mainland UK ( Details ). We will only be able to confirm if this product can be delivered to your chosen address when you enter your delivery address at checkout. |
| Included Components | Battery, Remote Control, Sensor, Siren |
| Installation method | wireless DIY |
| Item Package Quantity | 1 |
| Item Weight | 790 g |
| Item model number | Horn Kit B |
| Manufacturer | KERUI |
| Package Dimensions | 15.6 x 15.3 x 10.1 cm; 790 g |
| Plug profile | Door Mount |
| Power Source | Battery Powered |
| Size | Horn Alarm Kit B |
| Sound level | 115 Decibels |
| Voltage | 12 Volts |

## Product Details

- **Brand:** KERUI
- **Colour:** Red
- **Compatible devices:** KERUI Alarm Hub, DIY Kit
- **Connectivity technology:** Wireless
- **Power source:** Battery Powered

## Images

![115db DIY Wireless Home Security System,Indoor Outdoor Weather-Proof Siren,Window Door Sensors Motion Sensor,Shed Garage Alarm with Remote Control,Burglar Door Alarm for Hotel Shop House - Image 1](https://m.media-amazon.com/images/I/71sAWWXCo4L.jpg)

## Available Options

This product comes in different **Size** options.

## Questions & Answers

**Q: Is the remote water proof ?**
A: I don't think is waterproof, it is a simple remote control

**Q: Is it possible to purchase an extra siren?**
A: Dear friend,
Yes,we are sorry it's out of stock. you can check our store few days later. maybe it will on stock again.
If any other problem,please feel free to contact us via Amazon message or after-sale email tongwodeservice@outlook.com

**Q: Am I right in seeing extendable aerials on the sensors?! Like something from the 90s? 😂😂 can someone confirm this and give me a laugh please.**
A: Yes you can see aerial so you weak Wi-Fi signal is strong on PIR. These are reliable devices as if you install in obstruction view. It is one of the best device I installed

**Q: Can this work on a time switch or would I still have to re-arm it each time the power through? I was thinking of a timer for driveway 11pm to 7am?**
A: Hi friend.
The alarm can't work with  time switch and you have to re-arm it each time the power through.sorry for this.
If any other problem,please feel free to contact us via Amazon message or after-sale email tongwodeservice@outlook.com

## Customer Reviews

### ⭐⭐⭐⭐⭐ Excellent Home Security System – Easy to Install and Reliable!
*by E***N on 17 December 2024*

I couldn't be happier with the KERUI 115db DIY Wireless Home Security System! This system is a game-changer for home security, offering a perfect balance of affordability, functionality, and ease of use. Installation was a breeze, even for someone like me with minimal DIY experience. The wireless design meant no messy wiring, and the components connected seamlessly. The 115db siren is incredibly loud and serves as an excellent deterrent for any unwanted intruders. I also appreciate that it’s weatherproof, so I can confidently use it outdoors without worry. The window and door sensors are responsive and reliable, giving me peace of mind that every entry point is monitored. I love how customizable the system is, allowing me to add or adjust components as needed. This system is perfect for anyone looking to enhance their home security without breaking the bank. Highly recommend!

### ⭐⭐⭐⭐⭐ So easy to install
*by S***F on 11 October 2025*

What an incredible alarm. Was being quoted £200 for call out and £250 an hour for a burglar alarm engineer to come and fix an old wired bantam alarm system. I ordered three of these alarms and they were up and running in next to no time .It took me one hour and cost under £ 100 and a much better system and so easy to use. Would recommend to all family and friends.

### ⭐⭐⭐⭐ Works fine as a basic Motorhome alarm
*by D***D on 6 May 2022*

I was looking for a basic, low-cost alarm for my motorhome. I already have a Tracker type alarm that would notify me if the vehicle was started or moved (and I can track via GPS) but I wanted something that would deter a break-in. My Ford Transit based Motorhome doesn’t have an inbuilt alarm, presumably as it would be activated if your van was locked at night but you are living in it. There are much more sophisticated alarms available but they can be quite expensive (£150 +) so I gave this a try. It’s not intended as a vehicle alarm more for sheds, garages etc. I could see from the description that the detectors are battery powered and I could also see that the central alarm/sounder part is mains powered but via a power adapter that in the pictures had a n output of 12V DC, so could (with a few modifications) be powered from the leisure battery. So I took a gamble and ordered (I could have always have returned to Amazon if not suitable). When it arrived, I first setup the system in the house with the alarm sounder plugged in to the mains. It comes with a proper English (i.e. not translated Chinese!) instruction sheet. This is very basic but then the system is very basic. You power it up, it beeps, then you disconnect/reconnect the power to the sounder three times. It beeps three times and goes into a learning mode. You then remove the isolator tab from all of the sensor batteries so they power-up. You also press a button on each of the two remotes, they are acknowledged with a beep. You power-cycle the sounder again and you are good-to-go. The sounder is very loud, I smothered it in a towel, set the alarm and one by one tested the three window/door switches and PIR (my kit had 2 PIR’s but I will only use one). All worked fine 1st time. The window/door switches have 2 x LED’s on them. When you move the magnet away to the point it alarms, one LED briefly illuminates, this helps in the setting up. I don’t know what the 2nd LED does? The PIR has an inbuilt LED that illuminates when it detects movement in the usual way. I then took the kit to my Motorhome and installed one window/door switches on my door and the other two on my two main (vulnerable) windows. Motorhome windows are (small) I had to mount the switch part on the Window and the magnet on the fixed side. The red LED helps in getting this right. Obviously, this does obscure the window a bit (see photo’s) but I’m fine with that as they are obvious from the outside and acts as a deterrent. I didn’t have any issues in mounting them, they are supplied with pre-cut double sided pads which grip well. There is a fair lee-way in the positioning of the magnet, maybe a 8- 10mm gap required before triggering, so the positioning doesn’t have to be perfect, just close enough. Also, the switches are small enough that they didn’t get in the way when I pull out the blind or fly-screen. Same with the door. My MH also has windows in the bathroom and two in the bed area. I mounted my PIR at the cab end, looking backward over the inside of the van. Seems to work well and will trigger if movement is detected in the van. The PIR has an on/off switch so you can include/exclude this from the system meaning I can set the alarm (at night) while in the van and have permitter protection. Lastly, I tapped into a fused, always-on, leisure battery supplied 12V supply (some DIY skills required here). I cut the cable to the sounder and spliced-in a longer two-core cable. I mounted the sounder in an external locker. As it was, the power adapter was rated at 9V but seems fine on my 12V supply. Of course doing this would invalidate any warranty. Al works fine. The remotes have a really long range (100M?) so no issues arming/disarming. I have had the alarm on (with the PIR on) for over 24 hours now (with the MH on my drive) and no false alarms. Overall, I’m very happy with the system. Great value at this price. The remotes are a bit cheap and “plasticky” but should be ok if looked after. The buttons are small and there is a risk you may press the “panic” button and trigger the alarm by accident. Useful though if there was someone creeping about outside and you wanted to scare them off. The sounder is VERY loud and on the plus-side would surely scare off an potential break-in of triggered but on the negative side, when you arm/disarm the system, it gives an acknowledgement chirp. If doing this as night with other campers nearby, this may be a bit irritating but there doesn’t seem to be anyway round this. I also like the fact that detectors use proper 9V and 12A lithium batteries so should last and they are cheap and easy to replace. The remotes use button type batteries but like a car key-fob hopefully should last. One last factor would be the current-drain by the sounder/control system being constantly on. My MH has solar panels, so they should easily compensate for any battery drain but if you don’t have this and are not connected to the mains, this might be an issue. I measured the battery drain at 8.6mA (whether armed or not) so by my maths, this would take 242 days to drain a 100Ah battery to 50% so not really a worry.

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*Product available on Desertcart Portugal*
*Store origin: PT*
*Last updated: 2026-03-19*