---
product_id: 167231178
title: "(MC-AL) Wireless Door Window Open Alert Home Security System Siren/Alarm, Standard Size, White - Set of 4 Nos Sensors"
brand: "navkar systems"
price: "€ 33.42"
currency: EUR
in_stock: true
url: https://www.desertcart.pt/products/167231178-mc-al-wireless-door-window-open-alert-home-security-system
store_origin: PT
region: Portugal
---

# Wireless freedom Replaceable battery 80dB loud alarm (MC-AL) Wireless Door Window Open Alert Home Security System Siren/Alarm, Standard Size, White - Set of 4 Nos Sensors

**Brand:** navkar systems
**Price:** € 33.42
**Availability:** ✅ In Stock

## Summary

> 🚪🔔 Stay one step ahead—secure every entry with silent style!

## Quick Answers

- **What is this?** (MC-AL) Wireless Door Window Open Alert Home Security System Siren/Alarm, Standard Size, White - Set of 4 Nos Sensors by navkar systems
- **How much does it cost?** € 33.42 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/167231178-mc-al-wireless-door-window-open-alert-home-security-system)

## Best For

- navkar systems enthusiasts

## Why This Product

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

## Key Features

- • **Smart control:** Manage and monitor alerts easily via your smartphone app
- • **Instant alerts:** Triggers a piercing 80dB siren to deter intruders immediately
- • **Seamless style:** Standard white sensors blend perfectly with modern home décor
- • **Effortless setup:** Wireless design means no messy wires or drilling
- • **Multi-point protection:** Set of 4 sensors covers multiple doors/windows simultaneously

## Overview

This set of 4 wireless door/window contact sensors offers easy installation and smart app control, triggering an 80-decibel alarm to alert you instantly of any unauthorized entry. Designed in a sleek white finish, these standard-sized sensors blend discreetly into your home while providing reliable multi-point security and peace of mind.

## Description

(MC-AL) Wireless Door Window Open Alert Home Security System Siren/Alarm, Standard Size, White - Set of 4 Nos Sensors

## Features

- Set includes 4 sensors to monitor multiple entry points simultaneously.
- Wireless design for easy and hassle-free installation.
- Triggers a siren or alarm when a door or window is opened, alerting you to potential intrusions.
- Standard size and white color blend seamlessly with home décor.
- Provides peace of mind by helping to keep your property and loved ones safe whether you're at home or away.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Battery Description | Replaceable battery |
| Control Method | App |
| Noise Level | 80 Decibels |
| Mounting Type | Door Mount, Window Mount |
| Sensor Technology | Contact Sensor |
| Country of Origin | China |
| Item model number | NS-Security sensor-4 |
| Product Dimensions | 10 x 10 x 5 cm; 220 g |
| ASIN | B07KZQ94QL |

## Product Details

- **Colour:** white
- **Brand:** NAVKAR SYSTEMS
- **Power Source:** Battery Powered
- **Compatible Devices:** Home Security System
- **Product Dimensions:** 10L x 10W x 5H Centimeters

## Images

![(MC-AL) Wireless Door Window Open Alert Home Security System Siren/Alarm, Standard Size, White - Set of 4 Nos Sensors - Image 1](https://m.media-amazon.com/images/I/41lOqr42uqL.jpg)

## Questions & Answers

**Q: What is its battery backup**
A: On depend ur requirement

**Q: Does it have a remote to switch it on and off?**
A: No, it has inbuilt switch at the side.

**Q: Can we use it on outdoor iron gate and what about waterproof?**
A: Dear Sir,

It's not water proof for more information please contact with our sales person on number 9416135607

Regards

Sudhir Jain
9354265458

**Q: What if the adhesive weakens and one of the unit falls? Then it will keep on ringing till the battery drains disturbing the neighbours.**
A: i can yes because i bought 4 units
out of them only 1 is still working on a door, 2 units adhesive got off after 15 days, another 1 was a failed unit which was rinining even though  power button was off and it became useless, i kept the 2 pieces attached so the ringing stops
unfortunately the cost was very high 2 years ago and its non returnable and no replacement

its better to find other kind of alarms rather than this

## Frequently Bought Together

- MC-AL Wireless Door Window Open Alert Home Security System Siren/Alarm, Standard Size, White - Set of 4 Nos Sensors
- SanDisk Ultra 64GB microSDXC UHS-I, 140MB/s R, Memory Card, 10 Y Warranty, for Smartphones

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**Shop now:** [https://www.desertcart.pt/products/167231178-mc-al-wireless-door-window-open-alert-home-security-system](https://www.desertcart.pt/products/167231178-mc-al-wireless-door-window-open-alert-home-security-system)

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*Product available on Desertcart Portugal*
*Store origin: PT*
*Last updated: 2026-04-23*