What should I pay attention to before using the CT-300?

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.

Why do I smell gas leakage but the CT-300 doesn't display any values?

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.

Why can't carbon monoxide be detected in a closed room?

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).

Why can't carbon monoxide be detected even when there is a combustion source present?

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.

Fully operational. Shipping worldwide, on schedule.Customs & duties included in the price

Help Track order

Account Cart

Fully operational. Shipping worldwide, on schedule.Customs & duties included in the price

Help Track order

Account Cart

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

Product ID: 600927207

Details

Alarm
Audible Visual
Brand
TOPTES
Colour
Orange
Item weight
0.3 Kilograms
Number of items
1
Operating humidity
90 percent

⚡0-5000 ppm ultra-sensitive range

🔊Dual audible & visual alarms

🔋40-hour battery life with auto shutoff

Buy anything from 5,000+ international stores. One checkout price. No surprise fees. Join 2M+ shoppers on Desertcart.

19648 som

Duties & taxes included

In stock

Sold byAmazon KyrgyzstanDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Kyrgyzstan.

Secure transaction

Description

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

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.
PORTABLE DURABLE DESIGN - Compact, lightweight (300g) with anti-slip edges and rugged ABS/PC casing—perfect for on-the-go safety in any environment.
COMPLETE SAFETY KIT INCLUDED - Ready to use out of the box with 3 AAA batteries, protective case, and user manual—your all-in-one CO safety companion.
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.

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 to alert users promptly, backed by a durable, lightweight design with a backlit LCD screen for easy monitoring. Powered by 3 included AAA batteries, it offers up to 40 hours of continuous use with energy-saving auto shutoff, making it an essential safety device for home, car, camping, and travel.

Specifications

ASIN	B0CL9MV4MG
Alarm	Audible, Visual
Best Sellers Rank	128,424 in DIY & Tools ( See Top 100 in DIY & Tools ) 135 in Carbon Monoxide Detectors
Brand	TOPTES
Colour	Orange
Country of Origin	China
Customer Reviews	4.4 4.4 out of 5 stars (1,078)
Included Components	1x CT-300 Carbon Monoxide Detector, 1x Protective Case, 1x User Manual, 3x AAA Batteries
Item Weight	0.3 Kilograms
Manufacturer	TOPTES
Manufacturer Warranty Description	A 36-month after-sale service and lifetime technical support.
Model Number	CT-300
Number of Items	1
Operating Humidity	90 percent
Part Number	CT-300
Power source	Battery Powered
Product Style	CT-300 CO detector
Sensor Type	Electrochemical
Unit Count	1.0 count

Common Questions

Are the products genuine and authentic?+

Yes, all products are sourced directly from authorized retailers in the US, UK, UAE and India. We maintain strict quality control processes and verify each product before shipping. All items come with applicable manufacturer warranties and are covered by our standard return policy.

How long does delivery take and is it reliable?+

Delivery times vary by destination country, typically ranging from 3-9 business days. Each order is fully trackable through our system. We handle all customs clearance and use reliable courier partners for last-mile delivery. You'll receive regular updates about your order status via email and our app.

What is Desertcart? Is it safe to order from?+

Desertcart is an international e-commerce platform operating since 2014. We securely process thousands of orders globally each day. Every product goes through our quality verification process before delivery, and we provide end-to-end order tracking, 24/7 customer support, and a comprehensive returns policy to ensure a safe shopping experience.

How is product pricing calculated?+

Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Anjali K.

The product quality is outstanding. Exactly what I needed for my work.

1 month ago

Farhan Q.

The delivery time was excellent, and the packaging was secure.

2 months ago

View all Trustpilot reviews

Shop Global, Save with Desertcart

Value for Money

Competitive prices on a vast range of products

Shop Globally

Serving millions of shoppers across more than 100 countries

Enhanced Protection

Trusted payment options loved by worldwide shoppers

Customer Assurance

Trusted payment options loved by worldwide shoppers.

Desertcart App

Shop on the go, anytime, anywhere.

Buy anything from 5,000+ international stores. One checkout price. No surprise fees. Join 2M+ shoppers on Desertcart.

19648 som

Duties & taxes included

In stock

Sold byAmazon KyrgyzstanDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Kyrgyzstan.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Abdullah B.

Great price for an authentic product. Fast international shipping too!

3 weeks ago

Pooja R.

The customer service exceeded my expectations. Perfect for buying products you can't find elsewhere.

1 week ago

View all Trustpilot reviews