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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 677 reviews
Condition: New
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Availability: In Stock.
Fulfilled by Amazon

Arrives Tuesday, Feb 25
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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, Feb 25

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.

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Top Amazon Reviews


  • 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

  • Accurate and portable
Color: Orange
Does the job! Accurate and portable. I wanted a way to test auto fumes and therefore carbon monoxide from inside my car. I was easily able to do that and the instruction guide was easy to read and use. Got the all clear with thus device! Now if I could just get my husband to stop starting his car in the garage to let it "warm up" we'd be carbon monoxide free :) ... show more
Reviewed in the United States on February 2, 2025 by Tabitha

  • 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

  • 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

  • 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

  • Works as advertised
Color: Orange
Works as it’s supposed to from what I can tell testing on my gas stove top. I bought this because I recently had a carbon monoxide detector go off in my home. I called the fire department. They had no readings of carbon monoxide and told me the existing detector I had was faulty. I bought this so I never need to call the fire department for a faulty detector again haha. Comes with a nice little carrying case that I use for my explosive gas detector by the same company and a little voltage detector now too. Would recommend for home owners. Reading the other reviews I’m not sure this is up to the task of professional use. With that said it’s an invaluable home tool. ... show more
Reviewed in the United States on December 24, 2024 by Anonymous Anonymous

  • Wildly inaccurate, would be dangerous to trust your life with.
Color: Orange
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

  • Works well
Color: Orange
Works well in my garage to be sure my propane heater is not going to kill me.
Reviewed in the United States on February 12, 2025 by Ty

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