---
product_id: 12319473
title: "System Sensor MHW SpectrAlert Mini Horn, Wall Mount, 12/24V, White"
brand: "system sensor"
price: "HK$358"
currency: HKD
in_stock: true
reviews_count: 1
category: "System Sensor"
url: https://www.desertcart.hk/products/12319473-system-sensor-mhw-spectralert-mini-horn-wall-mount-12-24v
store_origin: HK
region: Hong Kong
---

# Reliable classic horn sound 12/24V dual voltage power Compact wall-mount design System Sensor MHW SpectrAlert Mini Horn, Wall Mount, 12/24V, White

**Brand:** system sensor
**Price:** HK$358
**Availability:** ✅ In Stock

## Summary

> 🔔 Stay alert, stay ahead — the mini horn that means business.

## Quick Answers

- **What is this?** System Sensor MHW SpectrAlert Mini Horn, Wall Mount, 12/24V, White by system sensor
- **How much does it cost?** HK$358 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.hk](https://www.desertcart.hk/products/12319473-system-sensor-mhw-spectralert-mini-horn-wall-mount-12-24v)

## Best For

- system sensor enthusiasts

## Why This Product

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

## Key Features

- • **Durable & Dependable:** Built by System Sensor, a leader in safety tech, for long-lasting performance.
- • **Trusted Audible Alert:** Classic horn sound ensures clear, unmistakable notifications every time.
- • **Effortless Integration:** Universal fit and easy setup mean no downtime for your critical safety systems.
- • **Space-Smart Wall Mount:** Sleek, compact design fits discreetly in any professional environment.
- • **Dual Voltage Flexibility:** Seamlessly powers on 12V or 24V systems for versatile installation.

## Overview

The System Sensor MHW SpectrAlert Mini Horn is a compact, wall-mounted alarm horn operating on 12 or 24 volts. Designed for reliable, clear audible alerts, it fits seamlessly into professional safety systems, offering durable performance from a trusted industry brand.

## Description

System Sensor MHW SpectrAlert Mini Horn, Wall Mount, 12/24V, White

Review: Works like it should . - Works fine just like it was made to .I was very happy with it.

## Features

- 12-24 V
- MINI HORN
- Buzzer/Horn/Alarm
- Panel Accessories
- White

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B00QW2YJWK |
| Automotive Fit Type | Universal Fit |
| Best Sellers Rank | #49,849 in Electronics ( See Top 100 in Electronics ) #182 in Security Horns & Sirens |
| Brand | System Sensor |
| Color | White |
| Customer Reviews | 3.8 3.8 out of 5 stars (22) |
| Date First Available | October 5, 2009 |
| Is Discontinued By Manufacturer | No |
| Item Weight | 0.01 ounces |
| Item dimensions L x W x H | 6 x 4 x 3 inches |
| Item model number | MHW |
| Manufacturer | System Sensor |
| OEM Part Number | MHW |
| Product Dimensions | 6 x 4 x 3 inches |
| Style | Classic |
| UPC | 783863032882 |

## Product Details

- **Brand:** System Sensor
- **Color:** White
- **Fit Type:** Universal Fit
- **Item dimensions L x W x H:** 6 x 4 x 3 inches
- **Voltage:** 12 Volts

## Images

![System Sensor MHW SpectrAlert Mini Horn, Wall Mount, 12/24V, White - Image 1](https://m.media-amazon.com/images/I/61zIPrNcpUL.jpg)

## Questions & Answers

**Q: Can this be placed outside in the rain**
A: No, it is not rated for outdoor use.

**Q: Does this chirp like s smoke detector or buz like a horn. I want a different sound than a smoke detector**
A: It does these 3. Buzzer/horn/alarm

**Q: My new apartment has one of these. It chirps every time there is lightning outside. Anyone know why that might be?**
A: You need to call your super. Your apartment building's fire alarm monitoring company will need to fix the wiring within it.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Works like it should .
*by T***Y on October 4, 2018*

Works fine just like it was made to .I was very happy with it.

## Frequently Bought Together

- System Sensor MHW SpectrAlert Mini Horn, Wall Mount, 12/24V, White
- BOSCH SECURITY VIDEO Blue Line Gen Pir Motion Detector, 2 Pack, Blue, 40ft Range, Wall Mount, 94° Field of View, 7-layer Pattern Lookdown Lens

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**Shop now:** [https://www.desertcart.hk/products/12319473-system-sensor-mhw-spectralert-mini-horn-wall-mount-12-24v](https://www.desertcart.hk/products/12319473-system-sensor-mhw-spectralert-mini-horn-wall-mount-12-24v)

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*Product available on Desertcart Hong Kong*
*Store origin: HK*
*Last updated: 2026-02-20*