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
Condition: New
Checking for product changes
Buy Now, Pay Later
As low as
$11
/ mo
Learn more
- – 4-month term
- – No impact on credit
- – Instant approval decision
- – Secure and straightforward checkout
Ready to go? Add this product to your cart and select a plan during checkout.
Payment plans are offered through our trusted finance partners Klarna, PayTomorrow, Affirm, Afterpay, Apple Pay, and PayPal. No-credit-needed leasing options through Acima may also be available at checkout.
Learn more about financing & leasing here.
Free shipping on this product
30-day returns
Learn more
30-day refund/replacement
To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
Availability:
In Stock.
Arrives
Saturday, Jun 28
Recently Viewed
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:
Saturday, Jun 28
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.
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
Learn more about financing & leasing here.
Similar Products
Top Amazon Reviews
Color: Orange
This handheld carbon monoxide detector is a must have if you have any type of gas in your home! I recently renovated my kitchen and switched the oven from electric to propane. While using the oven for the very first time the flame in the oven just didn’t look right to me. I took out the CO detector and confirmed that there were dangerous levels of CO emanating from the oven. Turns out the plumber who installed the oven never converted it from natural gas to propane. This handheld is easy to use, turns on fast and it’s quickly ready to test your appliances.
...
show more
Reviewed in the United States on May 26, 2025 by NY Jimmy
Color: Orange
I have recently biught a combustion analizer and this measure within 5 to 10 ppm of what the calibrated combustion analizer reads. Not bad considering the combustion analizer was $1500. I would expect this to easily pick up dangerious amount of CO without a problem, just realize it is also tempurture sensitve which can sffect the reading its its very cold or very hot where you are measuring but at room temp it reads fine.
...
show more
Reviewed in the United States on May 12, 2025 by jeremiah
Color: Orange
Worked perfectly, arrived the next day after ordering it at night. Gives me a lot of peace of mind, after having the carbon monoxide alarms go off.
Reviewed in the United States on May 30, 2025 by Cheryl Nissen
I tested this device against my wife's exhaust with the engine running and the garage door open. As soon as I got close to the exhaust, the detector was angry red with alarm bleeping nonstop, kudos ! As I walked away slowly from the exhaust, the scale gradually went down the on the monitor, then it turned green as soon as I walked into the living area and the connecting garage door was shut. So that gave me peace of mind that it works. I intend to use it to verify my combo ceiling mounted CO/Fire detector which recently has intermittently been going off when the furnace turns ON, even with new batteries. Now, I shall have the peace of mind knowing that it is not CO ticking off the alarm. In addition to the ceiling mounted CO/Fire detector, I also have a plug in CO detector. Cannot be over cautious with CO. I took away 1 star because the battery cover is the screw in type. This I find annoyingly inconveniencing in any appliance. It means use of another hardware, a screwdriver to remove the cover to change the batteries. This is one of several appliances ,I do not intend to leave the battery inside indefinitely, since hopefully it will be seldom used. So I think it is an inconvenience to always have to look for a 2.5 star screw driver any time I need to use the device just to put in the batteries. Why they could not design it with a slip on battery cover, which should be cheaper to make beats my imagination. Hope, they make future ones with a slip on battery cover.
...
show more
Reviewed in the United States on January 14, 2024 by Songhai
Color: Orange
Works great. Just as advertised helps me out a bunch at work. Prevents guessing work mistake.
Reviewed in the United States on May 29, 2025 by Exactly what we needed, love this pop-up Privacy tent only problem is How do you get it back into its case?
Color: Orange
This is a great addition to my rental home inspection equipment, works well.
Reviewed in the United States on May 22, 2025 by JM
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
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