---
product_id: 600927207
title: "TopTes CT-300 Portable Carbon Monoxide Detector, CO Detector with Audible & Visual Alarm, 0-5000PPM, CO Alarm, Backlit LCD Screen, for Home, Car, Camping& Travel (Includes Battery x3) - Orange"
brand: "toptes"
price: "₩191292"
currency: KRW
in_stock: true
reviews_count: 13
category: "Toptes"
url: https://www.desertcart.kr/products/600927207-toptes-ct-300-portable-carbon-monoxide-detector-co-detector-audible
store_origin: KR
region: South Korea
---

# 0-5000 ppm ultra-sensitive range Dual audible & visual alarms 40-hour battery life with auto shutoff TopTes CT-300 Portable Carbon Monoxide Detector, CO Detector with Audible & Visual Alarm, 0-5000PPM, CO Alarm, Backlit LCD Screen, for Home, Car, Camping& Travel (Includes Battery x3) - Orange

**Brand:** toptes
**Price:** ₩191292
**Availability:** ✅ In Stock

## Summary

> 🚨 Stay Ahead of Invisible Threats with TopTes CT-300 – Your Portable CO Guardian!

## Quick Answers

- **What is this?** TopTes CT-300 Portable Carbon Monoxide Detector, CO Detector with Audible & Visual Alarm, 0-5000PPM, CO Alarm, Backlit LCD Screen, for Home, Car, Camping& Travel (Includes Battery x3) - Orange by toptes
- **How much does it cost?** ₩191292 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.kr](https://www.desertcart.kr/products/600927207-toptes-ct-300-portable-carbon-monoxide-detector-co-detector-audible)

## Best For

- toptes enthusiasts

## Why This Product

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

## Key Features

- • **Dual Alarm System:** Visual color-changing screen paired with a loud audible alert guarantees you never miss a critical CO spike, whether at home, in your car, or on the trail.
- • **Complete Safety Kit:** Includes 3 AAA batteries, protective case, and user manual—everything you need to start protecting your space immediately.
- • **Portable & Durable Design:** Compact, lightweight (300g) with anti-slip edges and rugged ABS/PC casing—perfect for on-the-go safety in any environment.
- • **Swift & Precise CO Detection:** Advanced electrochemical sensor delivers rapid, accurate readings from 0 to 5000 ppm, ensuring early warnings before danger strikes.
- • **User-Friendly & Energy Efficient:** Backlit LCD for easy reading in low light, low battery indicator, and automatic power-off after 10 minutes of inactivity to maximize battery life.

## Overview

The TopTes CT-300 is a portable carbon monoxide detector featuring an advanced electrochemical sensor capable of detecting CO levels from 0 to 5000 ppm. It combines visual and audible alarms for immediate alerts, a backlit LCD for easy reading, and a durable, compact design ideal for home, car, camping, and travel use. Powered by 3 included AAA batteries, it offers up to 40 hours of operation with energy-saving auto shutoff, making it a reliable, user-friendly safety essential.

## Description

Shop TopTes CT-300 Portable Carbon Monoxide Detector, CO Detector with Audible & Visual Alarm, 0-5000PPM, CO Alarm, Backlit LCD Screen, for Home, Car, Camping& Travel (Includes Battery x3) - Orange. Free delivery on eligible orders of £20 or more.

Review: Great - Great tool easy to easy value for money worked fine for me did what I wanted it to do all good
Review: Excellent portable carbon monoxide detector - Excellent carbon monoxide portable detector ever caravan should have one or for home use much more accurate than the home detectors sold in DIY shops

## Features

- Carbon Monoxide Detector: TopTes CT-300 is an ideal portable CO tester to help you detect CO gas concentrations timely and accurately, reducing the risk of CO poisoning and protecting your life. It is a must-have tool for homeowners, drivers, campers, DIY-ers, tourists, etc
- Swift & Precise Measurement: The CT-300, with an advanced electrochemical sensor head, swiftly detects CO levels from 0-5000 ppm. Its sensitivity ensures early warnings, allowing timely actions to prevent health risks. Accurate readings empower quick decisions, promoting safety and well-being. Versatile and portable, it guards against CO in various settings, ensuring peace of mind
- Visual & Audible Alarm: The travel CO detector uses both visual and audible alarms. When the concentration of CO reaches the alarm threshold, the screen changes color and emits an urgent alarm sound to alert you of the presence of CO gas in your surroundings, allowing you to promptly detect the danger, protect yourself
- User-Friendly Functions: With high-quality ABS and PC material and anti-slip edge texture, CT-300 is durable and portable; It can be used for 40 hours with new batteries; Low-power indicator will remind you of time to change batteries; It will automatically switch off when not in operation or when no gas is detected within 10 minutes to save power; Backlit screen for easy viewing, adaptable to dim environments
- What You Get: You will receive CT-300 Carbon Monoxide Detector, Protective Case, AAA Batteries, User Manual

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0CL9MV4MG |
| Batteries | 3 AAA batteries required. (included) |
| Batteries Required? | Yes |
| Batteries included? | Yes |
| Battery Cell Type | Alkaline |
| Best Sellers Rank | 51,734 in DIY & Tools ( See Top 100 in DIY & Tools ) 97 in Carbon Monoxide Detectors |
| Certification | CE, FCC, RoHS, UKCA |
| Colour | Orange |
| Customer Reviews | 4.4 4.4 out of 5 stars (1,046) |
| Date First Available | 21 Oct. 2023 |
| Included Components | 1x CT-300 Carbon Monoxide Detector, 1x Protective Case, 1x User Manual, 3x AAA Batteries |
| Item Weight | 300 g |
| Item model number | CT-300 |
| Manufacturer | TOPTES |
| Part Number | CT-300 |
| Power Source | Battery Powered |
| Product Dimensions | 6.71 x 3.51 x 16 cm; 300 g |
| Style | CT-300 CO detector |

## Product Details

- **Alarm:** Audible, Visual
- **Brand:** TOPTES
- **Colour:** Orange
- **Item weight:** 0.3 Kilograms
- **Manufacturer:** TOPTES
- **Number of items:** 1
- **Operating humidity:** 90 percent
- **Power source:** Battery Powered
- **Sensor type:** Electrochemical
- **Style:** CT-300 CO detector

## Images

![TopTes CT-300 Portable Carbon Monoxide Detector, CO Detector with Audible & Visual Alarm, 0-5000PPM, CO Alarm, Backlit LCD Screen, for Home, Car, Camping& Travel (Includes Battery x3) - Orange - Image 1](https://m.media-amazon.com/images/I/7139F43kLCL.jpg)

## Available Options

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

## Questions & Answers

**Q: What should I pay attention to before using the CT-300?**
A: Please open the CT-300 in clean air (such as outdoors with ventilation) and wait for the preheating to complete, which is expected to take 5 seconds.

**Q: Why do I smell gas leakage but the CT-300 doesn't display any values?**
A: Carbon monoxide is a colorless and odorless gas. The odor you're smelling may not be from carbon monoxide gas. Try using a combustible gas detector for testing.

**Q: Why can't carbon monoxide be detected in a closed room?**
A: When there is no significant source of combustion indoors, even in a closed room, carbon monoxide will not be generated. The gases exhaled by humans contain carbon dioxide (CO2), which is a different gas from carbon monoxide (CO).

**Q: Why can't carbon monoxide be detected even when there is a combustion source present?**
A: Not all combustion produces CO gas, only incomplete combustion does, which is characterized by a red/yellow flame in most cases. Also, ensure proximity during measurement to prevent gas dispersion, which may lead to undetectable concentrations.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Great
*by C***J on 20 October 2025*

Great tool easy to easy value for money worked fine for me did what I wanted it to do all good

### ⭐⭐⭐⭐⭐ Excellent portable carbon monoxide detector
*by B***Y on 27 March 2025*

Excellent carbon monoxide portable detector ever caravan should have one or for home use much more accurate than the home detectors sold in DIY shops

### ⭐⭐⭐⭐ A great detector that gives peace of mind
*by A***R on 11 February 2024*

This funky orange CO detector comes in a nice retail box, which is compact and without wasted packaging. I’m not an expert on this sort of kit but I am impressed by the build quality for such a relatively inexpensive device. This feels pro-level, and I know that those detectors cost in the hundreds. It runs on 3 x AAA batteries, which are included for a change. I recalibrated my unit as it was giving strange readings out of the box, which is not unusual with detectors that have been in storage. (this is covered in the instruction booklet). The LCD is easy to read and has a backlight which helps a lot in dark conditions. The alarm is specific and loud, there’s no mistaking if it has detected excess CO. There is also a visual alarm for those hard of hearing. The unit has a lot of helpful settings, although historic min/max levels are not included, which seems like a strange omission. My £2.50 humidity detector has that function. In testing with our oil burner it easily detected CO from the exhaust, which shows the burner isn’t fully efficient (which no burner is, of course). Inside the house no leaks were found. This will be great for use at home or in a business, of course if you’re having problems always call the experts in right away and don’t rely on a cheap tool like this. The current price is £42.99, which I think is worth it considering how expensive a callout or professional unit would cost.

## Frequently Bought Together

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*Product available on Desertcart South Korea*
*Store origin: KR*
*Last updated: 2026-03-08*