---
product_id: 312499726
title: "Combination Carbon Monoxide Alarm Detector & Smoke Alarm, Replaceable Battery Operated Alarm Detector with Digital Display and Voice Alarm,For Your Home, Garage, Office (AA Batteries NOT Included) …"
brand: "usbnovel"
price: "C$307"
currency: NIO
in_stock: true
url: https://www.desertcart.ni/products/312499726-combination-carbon-monoxide-alarm-detector-and-smoke-alarm-replaceable-battery
store_origin: NI
region: Nicaragua
---

# Digital Display Compact Size Battery Operated Combination Carbon Monoxide Alarm Detector & Smoke Alarm, Replaceable Battery Operated Alarm Detector with Digital Display and Voice Alarm,For Your Home, Garage, Office (AA Batteries NOT Included) …

**Brand:** usbnovel
**Price:** C$307
**Availability:** ✅ In Stock

## Summary

> Stay Safe, Stay Smart! 🏠

## Quick Answers

- **What is this?** Combination Carbon Monoxide Alarm Detector & Smoke Alarm, Replaceable Battery Operated Alarm Detector with Digital Display and Voice Alarm,For Your Home, Garage, Office (AA Batteries NOT Included) … by usbnovel
- **How much does it cost?** C$307 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ni](https://www.desertcart.ni/products/312499726-combination-carbon-monoxide-alarm-detector-and-smoke-alarm-replaceable-battery)

## Best For

- usbnovel enthusiasts

## Why This Product

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

## Key Features

- • **🔊 Loud & Clear Alerts:** 70 dB alarm ensures you're always aware.
- • **📈 Real-Time Monitoring:** Digital display shows CO levels accurately.
- • **🔧 Quick & Easy Installation:** No wires, just 3 batteries!
- • **🛡️ Dual-Spectrum Detection:** Combines smoke and CO detection for safety.
- • **🔋 Low Battery & Malfunction Alerts:** Stay informed about your alarm's status.

## Overview

The Combination Carbon Monoxide Alarm Detector & Smoke Alarm is a battery-operated safety device designed for easy installation and reliable monitoring. Featuring a digital display for real-time CO level readings, dual-spectrum detection, and clear audio alerts, this alarm ensures your home, garage, or office is protected from smoke and carbon monoxide hazards.

## Description

Full description not available

## Features

- Quick & Easy Installation：It can be installed independently, without wires, just three batteries. It can be placed or fixed where you want. Carbon monoxide is lighter than air, so it is recommended to install it at a distance of 30cm from the ceiling，3-color flashing LED indicator (red, green, yellow)
- Alarm Detector:Smoke and carbon monoxide detector with dual-spectrum smoke sensor,which can give out 70 dB alarm and flashing reminder, very clear reminder.And Malfunction and low battery warnings allow you to know the working status of the alarm; Test/Silence button enables you to test the alarm weekly, and to easily silence the alarm when false alarms occur; in case of an emergency, an alarm tone of will sound throughout your entire home, alerting the entire household, even those in sleep
- Liquid crystal display: Equipped with both photoelectric and electrochemical CO sensors ,The concentration of carbon monoxide that can be accurately measured is displayed on the display screen, and the concentration data can be accurately seen. When the concentration reaches a certain level, carbon monoxide smoke The detector will notify you immediately when it detects it, minimizing false alarms
- NOTE: It is not recommended to install it in corners, cabinets and other places where there is no air circulation, and it is prohibited to place it in places with oily smoke
- Warranty - If you meet any quality issues with Smoke Alarm,You are welcome to connect with us or desertcart question message, We will consistently spare no effort to provide good service and experience for every customers!

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Manufacturer | USBNOVEL ElectronicsDirect |
| Part Number | USBNOVEL ElectronicsDirect |
| Product Dimensions | 9 x 9 x 2 cm; 10 g |
| Item model number | JKD-512COM |
| Colour | 01-white |
| Style | Digital |
| Power Source | Battery Powered |
| Batteries included? | No |
| Batteries Required? | No |
| Item Weight | 10 g |

## Product Details

- **Brand:** USBNOVEL
- **Style:** Digital
- **Power source:** Battery Powered
- **Colour:** 01-white
- **Product dimensions:** 10.3D x 10.3W x 3.5H centimetres
- **Item weight:** 0.01 Kilograms
- **Alarm:** Audible
- **Operating humidity:** 95 percent
- **Sensor type:** Carbon Monoxide Sensor
- **Manufacturer:** USBNOVEL ElectronicsDirect

## Images

![Combination Carbon Monoxide Alarm Detector & Smoke Alarm, Replaceable Battery Operated Alarm Detector with Digital Display and Voice Alarm,For Your Home, Garage, Office (AA Batteries NOT Included) … - Image 1](https://m.media-amazon.com/images/I/71qR0d5IFTL.jpg)
![Combination Carbon Monoxide Alarm Detector & Smoke Alarm, Replaceable Battery Operated Alarm Detector with Digital Display and Voice Alarm,For Your Home, Garage, Office (AA Batteries NOT Included) … - Image 2](https://m.media-amazon.com/images/I/71hbUI9yRGL.jpg)
![Combination Carbon Monoxide Alarm Detector & Smoke Alarm, Replaceable Battery Operated Alarm Detector with Digital Display and Voice Alarm,For Your Home, Garage, Office (AA Batteries NOT Included) … - Image 3](https://m.media-amazon.com/images/I/71On+h1QsuL.jpg)
![Combination Carbon Monoxide Alarm Detector & Smoke Alarm, Replaceable Battery Operated Alarm Detector with Digital Display and Voice Alarm,For Your Home, Garage, Office (AA Batteries NOT Included) … - Image 4](https://m.media-amazon.com/images/I/71dkfUWYZrL.jpg)
![Combination Carbon Monoxide Alarm Detector & Smoke Alarm, Replaceable Battery Operated Alarm Detector with Digital Display and Voice Alarm,For Your Home, Garage, Office (AA Batteries NOT Included) … - Image 5](https://m.media-amazon.com/images/I/81rDCppdrwL.jpg)

## Questions & Answers

**Q: Does this comply with the new law in scotland**
A: Hopefully it does

**Q: What do I do if the green light does not flash at all after set up?**
A: Try different batteries in case that's the issue and that they are in properly. It can also be difficult to see the green flashing light in daylight. Check it when it is dark. It only flashes every 68 seconds. Also, check the pamphlet to make sure you followed the start-up instructions.

**Q: I've just bought this alarm but I found the instructions very poor. Should the display stay blue as in all the pictures ? Worried it's faulty?**
A: Hello, the lights should not be on all the time.Try pressing the test button to activate the alarm and see if it will reset itself. OR take the batteries out and re-insert them to see if it will right itself. The blue light activates itself when testing and will show when batteries are first inserted but the go out.

**Q: Why is mine making a Fizzing noise?**
A: Yes, mine just started to make kind of a buzzing noise, constantly. I thought it might be the battery but no, it still buzz....

## Frequently Bought Together

- Combination Carbon Monoxide Alarm Detector & Smoke Alarm, Replaceable Battery Operated Alarm Detector with Digital Display and Voice Alarm,For Your Home, Garage, Office (AA Batteries NOT Included) …
- Duracell Plus AA Batteries (12 Pack) - Alkaline 1.5V - Up To 100% Extra Life - Reliability For Everyday Devices - 0% Plastic Packaging - 10 Year Storage - LR6 MN1500

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*Product available on Desertcart Nicaragua*
*Store origin: NI*
*Last updated: 2026-01-26*