---
product_id: 683162459
title: "Loud 135db Keypad Motion Sensor Alarm Siren for Garage, Shed. Portable Cordless Battery Operated Travel PIR Motion Detector Alert. Freestanding Indoor Infrared Home Security Intruder Burglar Alarm"
brand: "mosaic alarm"
price: "2852709₫"
currency: VND
in_stock: true
url: https://www.desertcart.vn/products/683162459-loud-135db-keypad-motion-sensor-alarm-siren-for-garage-shed
store_origin: VN
region: Vietnam
---

# 26ft PIR motion detection 135dB piercing siren 2-year standby battery life Loud 135db Keypad Motion Sensor Alarm Siren for Garage, Shed. Portable Cordless Battery Operated Travel PIR Motion Detector Alert. Freestanding Indoor Infrared Home Security Intruder Burglar Alarm

**Brand:** mosaic alarm
**Price:** 2852709₫
**Availability:** ✅ In Stock

## Summary

> 🚨 Stay one step ahead—because your peace of mind deserves a siren that means business!

## Quick Answers

- **What is this?** Loud 135db Keypad Motion Sensor Alarm Siren for Garage, Shed. Portable Cordless Battery Operated Travel PIR Motion Detector Alert. Freestanding Indoor Infrared Home Security Intruder Burglar Alarm by mosaic alarm
- **How much does it cost?** 2852709₫ 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/683162459-loud-135db-keypad-motion-sensor-alarm-siren-for-garage-shed)

## Best For

- mosaic alarm enthusiasts

## Why This Product

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

## Key Features

- • **No-Fuss Setup:** Simple keypad operation with 4-digit PIN—no apps, no tech headaches, just reliable security.
- • **Portable & Versatile:** Compact, cordless design perfect for garages, sheds, travel, and even outdoor animal deterrence.
- • **Wide Detection Range:** Covers up to 26 feet with a 120° horizontal PIR sensor for maximum security coverage.
- • **Dual Power Flexibility:** Runs on 4 AA batteries or USB power for uninterrupted protection anywhere.
- • **Instant Intruder Alert:** 135dB siren blasts loud enough to stop burglars in their tracks.

## Overview

The Loud 135dB Keypad Motion Sensor Alarm is a portable, battery or USB-powered security device designed for indoor and semi-outdoor use. Featuring a powerful 135dB siren triggered by a 26-foot range PIR motion sensor, it offers simple keypad arming and disarming with a 4-digit PIN code. Ideal for garages, sheds, and travel, it delivers up to 2 years of standby time on AA batteries, ensuring reliable, no-nonsense protection without the need for apps or complex setups.

## Description

Loud 135db Keypad Motion Sensor Alarm Siren for Garage, Shed. Portable Cordless Battery Operated Travel PIR Motion Detector Alert. Indoor USB Powered Infrared Home Security Intruder, Burglar Alarm

## Features

- 【Simple Keypad Motion Sensor Alarm 】Once the alarm is triggered by detecting a moving object through infrared heat sensing, if PIN CODE is not entered to disarm within the first 5s, then it sound loudly and will last 30s. A Portable PIR Motion Detector Alert for Shed, Garage, Outbuilding, Indoor, Windows, Gates, Front / Back Porches. Or for your travel, camping, RV, Motorhome, Touring Car. But please be noted IT IS NOT WATERPROOF. It is a great additional Indoor Cordless Infrared Home Security System for protecting your safety or property.
- 【135dB Extra Loud Siren & VOLUME IS NON-ADJUSTABLE.】It emits a very high-pitched, harsh sound, aiming to promptly deter potential intruder, burglar. This harsh sound might feel very uncomfortable for some sensitive individuals, but it is indeed very effective at achieving the purpose of deterring potential crime or grabbing attention.
- 【Freestanding Travel Camp Bear Alarm】Using as Large Animals Repeller when outdoors(NOT FOR SMALL ANIMALS). But you can still use it to keep dogs from destroying the furnitures or keep cats/pets off kitchen counters and tables at short range when you are away.
- 【Old-style But Very Simple & Reliable Keypad Alert】NO APP Required. Friendly operation for Elderly or Children. Set up the 4-digit PIN Codes first, then press Key '4' to arm. To disarm by easy entering 4 PIN CODE. Please follow the manual or the video tutorial. TIPS: When battery re-load, the 4-digit PIN code will need to be re-set.
- 【Up to 2 YEARS Long Stand-by Time(No Motion)】We recommend to use 4 pcs standard brand AA alkaline (NOT carbon-zinc) batteries with a capacity of 2500mAh/unit, such as Panasonic. Many non-standard brand batteries often have falsely advertised capacities of 2500mAh or even lower. Therefore paying attention to the actual capacity value of the battery.(Batteries NOT INCLUDED). The battery life dependent on frequency of use. If the monitored area has the high traffic that it might be triggered and sound frequently, the batteries will drain fast. Under this situation, we recommend to use external USB DC Power instead of battery powered.
- 【Support External USB Power】This Shed and Garage Alarm can also be connected to a power supply (5V USB Adapter) with included particular USB power cord(5ft/1.5m). TIPS: ADAPTER NOT INCLUDED.
- 【Strongly Recommend Wall-mounted Height 5ft/1.5m 】If the installation position is too high, it may result in reduced sensitivity or failure to detect moving objects. Detection Distance 20-26ft (6 -8 Meters) Detection Angle 120° in the horizontal direction, 60° in the vertical direction. Detectable Angle is NON-ADJUSTABLE.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Brand | Mosaic Alarm |
| Colour | White |
| Power Source | 4*AA alkaline Batteries Powered or External USB DC Powered |
| Item Weight | 100 g |
| Maximum Range | 26 Feet |
| Mounting Type | Wall-Mounted or Free Standing on the Desk |
| Battery Description | 4 x AA akaline Batteries |
| Temperature Range | 23-104 Degrees Fahrenheit |
| Product Dimensions | 3.6D x 6.4W x 15.7H Centimeters |
| Number of Batteries | 4 AA batteries required. |
| Operating Temperature | 23 Degrees Fahrenheit |
| Recommended Uses For Product | Residential Security, Commercial Security, Automation |
| Manufacturer | DongGuan HouJie Mosaic Electronics Factory |
| Item model number | MA20 |
| ASIN | B0DGQPK5WW |

## Product Details

- **Brand:** Mosaic Alarm
- **Colour:** White
- **Power Source:** 4*AA alkaline Batteries Powered or External USB DC Powered
- **Item Weight:** 0.22 Pounds
- **Maximum Range:** 26 Feet

## Images

![Loud 135db Keypad Motion Sensor Alarm Siren for Garage, Shed. Portable Cordless Battery Operated Travel PIR Motion Detector Alert. Freestanding Indoor Infrared Home Security Intruder Burglar Alarm - Image 1](https://m.media-amazon.com/images/I/512ibewaK0L.jpg)

## Questions & Answers

**Q: How This Non-waterproof PIR (Passive Infrared) Motion Sensor Alarm Works? (Please read below info before ordering)**
A: 1: Must first set up 4 PIN codes each time the battery is replaced. 2: Press the '4' key to arm after PIN codes Setting. You will have a 30s delay to leave the monitoring area. 3: Once triggered, you have 5s to disarm with codes, or it sounds for 30s

**Q: What is the recommended mounting height for this alarm?**
A: Recommended Wall-Mounted Installation Height: 5ft (1.5m); Installing the alarm too high may reduce sensitivity or hinder motion detection; Detection Range: 20-26ft (6-8 meters) Detection Angle: 120° horizontally, 60° vertically (non-adjustable);

**Q: How to power on this alarm?**
A: Option 1: Recommend using 4 AA alkaline batteries (not carbon-zinc) with a minimum capacity of 2500mAh per unit (BATTERY NOT INCLUDED & NOT RECHARGEABLE); Option 2: External USB Power with included special USB power cord. TIPS: ADAPTER NOT INCLUDED;

**Q: What can I do if batteries drain fast?**
A: If installed in a high-traffic area where the alarm is frequently triggered, the battery will deplete more quickly. In such cases, we recommend using an external USB power supply instead of relying solely on battery power.

**Q: Can this infrared sensor work normally in high-temperature environments, such as ambient temperatures exceeding 95°F?**
A: Recommended Temperature: 5°F to 95°F. High ambient temperature can cause infrared sensors to low performance or malfunction.Therefore, during installation, avoid direct sunlight or positioning the sensor towards other heat sources like radiators.

## Frequently Bought Together

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*Product available on Desertcart Vietnam*
*Store origin: VN*
*Last updated: 2026-03-12*