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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

    • Based on 758 reviews
Condition: New
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Availability: In Stock.
Fulfilled by Amazon
Arrives Tuesday, Apr 29
Order within 22 hours and 58 minutes
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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 (can be canceled); Backlit screen for easy viewing, adaptable to dim environments
  • Correct detection method: You can detect whether the CT-300 is working properly by detecting smoke from cigarettes, or burning organic matter (paper, etc.) in a sealed container. You will receive CT-300 Carbon Monoxide Detector, Protective Case, AAA Batteries, User Manual

Brand: TOPTES


Style: CT-300 CO detector


Power Source: Battery Powered


Color: Orange


Item Weight: 0.3 Kilograms


Alarm: Audible, Visual


Operating Humidity: 90 percent


Sensor Type: Electrochemical


Number of Items: 1


Manufacturer: TOPTES


Brand: ‎TOPTES


Style: ‎CT-300 CO detector


Power Source: ‎Battery Powered


Color: ‎Orange


Item Weight: ‎0.3 Kilograms


Alarm: ‎Audible, Visual


Operating Humidity: ‎90 percent


Sensor Type: ‎Electrochemical


Number of Items: ‎1


Manufacturer: ‎TOPTES


Part Number: ‎CT-300


Item Weight: ‎10.6 ounces


Product Dimensions: ‎2.64 x 1.38 x 6.3 inches


Country of Origin: ‎China


Item model number: ‎CT-300


Batteries: ‎3 AAA batteries required. (included)


Included Components: ‎3x AAA Batteries, 1x CT-300 Carbon Monoxide Detector, 1x Protective Case, 1x User Manual


Batteries Included?: ‎Yes


Batteries Required?: ‎Yes


Battery Cell Type: ‎Alkaline


Date First Available: October 17, 2023


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Tuesday, Apr 29

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

  • Klarna Financing
  • Affirm Pay in 4
  • Affirm Financing
  • Afterpay Financing
  • PayTomorrow Financing
  • Financing through Apple Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

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Top Amazon Reviews

    • Great CO detector.
Color: Orange
Great quality and works great. Great value for this product. Good piece of mind being able to check for carbon monoxide. Easy to use.
Reviewed in the United States on March 10, 2025 by greg
    • Really a very nice CO detector - It could save your life.
Color: Orange
This TopTes CT-300 Portable Carbon Monoxide Detector is really a very nice detector. I can't really report on its efficacy, though. because it is a scientific instrument, and I would need access to a scientific lab to make that kind of determination. However, it does appear to operate well. It has a very clear screen and simple controls, and fits nicely into your hand for use. The added hard, zippered, case is a nice touch, since a tool of this type is best stored in a case when not in use. For traveling, a smaller CO detector, one with rechargeable batteries, might be a tad more desirable to some, but this certainly would do the job. ... show more
Reviewed in the United States on January 2, 2025 by Shopper5
    • A must have item for your safety.
Color: Orange
A must have item, especially if you have a generator in the garage like I do. Seems to be very accurate and works very well. I have the generator extended exhaust to the outside and if for some reason that should fail I would get an alert before I would enter the garage. I also use a 12-in blower and 25 ft duct to exhaust the heat from the generator to the outside. Any exhaust gases would also be ... show more
Reviewed in the United States on March 22, 2025 by Emmett
    • Need to sell more USA PRODUCTS. QUIT GIVING CHINA ARE MONEY
Color: Orange
Works well wish it made in USA
Reviewed in the United States on January 6, 2025 by Gene Lee Winfrey JR
    • Not Reliable Enough for Peace of Mind
Color: Orange
I tried this portable carbon monoxide detector, but I wouldn’t recommend it over a plug-in model. The concept is great for travel or small spaces, but I found there was too much variation in the readings to feel confident in its accuracy. While it’s compact and easy to move around, the inconsistencies made me question whether it would reliably detect a real issue. For home use, I’d stick with a plug-in detector—it’s more stable and trustworthy. This portable one might be okay as a backup, but it’s not something I’d rely on as my main detector. ... show more
Reviewed in the United States on January 22, 2025 by Kelly Bollis
    • Good to have when your CO alarm sounds
Color: Orange
I have several Kidde fire/carbon monoxide alarms throughout my house that are also hard wired so that when one goes off, they all do. I’ve had two recent alarms that required me to disconnect all four to stop the alarms. When I reinstalled them later in the evening, they didn’t sound, until they did, a couple of weeks later. Given that I’ve replaced all of them in the last year or two as they reached their 10 year life expectancy, I have no reason to think that one may be defective, but no way to be sure. I immediately ordered this device and it was at my front door when I awoke the next morning. Great job Amazon. I took readings around both the propane hot air furnace in our basement as well as the propane stove in the kitchen. All readings, over several hours, were below the PPM that Kidde says should trigger the alarm. I am waiting until the weather turns colder so that the furnace runs continuously to take additional readings and keeping this meter handy so that I can immediately test if the alarms go off again. I had called the HVAC company to respond, but I don’t think they would have found a cause of the alarm going off. This meter is only a small fraction of the cost of a technician. So I canceled the service call and will use the meter to check periodically and grab it immediately in the event of another alarm. Looks like a quality made product at a great price, with the caveat that I have no way to independently test its accuracy, at least until the alarm goes off again. ... show more
Reviewed in the United States on November 7, 2024 by Kayemtee
    • Wildly inaccurate, would be dangerous to trust your life with.
Color: Orange
Review Image by Nick Nick
This device never worked out of the box. The moment that I turned it on inside my house, it started reading 100-150ppm. That made me nervous, so I turned it off, walked outside and turned it back on. The lowest possible reading that I was able to get outside in the middle of the woods was 100ppm. What's ironic is that the lowest ppm reading that I ever got on this was reading the exhaust from my propane boiler, where it basically dropped to zero. It's almost like the readings on this are completely inverted. In the end, I can't imagine a situation where someone should use this. If your are regularly monitoring CO levels, do yourself a favor and buy a more known and trusted brand. ... show more
Reviewed in the United States on January 26, 2025 by Nick Nick
    • But...
Color: Orange
Does it work near my gas water heater? No. Does it work near a candle? No. Does it work near a gas stove? No. Does it work near the exhaust of my car? Only with I stick it in the tail pipe. Here is how it did work. Stick it in. Nothing. Count to 10. Nothing. Start walking away (pissed)....almost to the driver's door, it goes off with reading. And the danger warning sounds off too. This makes me think there is a massive delay. This is my first purchase of CO2 device so I don't know exactly what to expect. Perhaps this is not professional grade. Compared to an average smoke detector, you light a match, and it goes off maybe in 1-2 seconds. Should I return it? The alternative may be to spend much more. Then again, I don't know. Maybe I should just get a smoke and CO2 detector, the round ones, and carry it around with me instead. This is a good looking device. Looks well built. Nice graphics. Looks nice. It just does not work. It does work, but.... ... show more
Reviewed in the United States on May 13, 2024 by Andrew Wang

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