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Smoke and Carbon Monoxide Detector Offering Excellent Security: Making a Loud Alarm (85 dB) When It Detects a Buildup of Smoke or Carbon Monoxide, and Instantly Alert Those In Danger.

Built-in Electrochemical Sensor with High Accuracy and Infrared Photoelectric Sensor Helping to Reduce False Alarms.

Carbon Monoxide Detector and Smoke Alarm Providing Whole-day Protection.

Battery-powered Unit Can be Installed Quickly and Easily without an Electrician.

We do a 5-year manufacturer's warranty and service until you are satisfied.

【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+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 1x CT-300 Carbon Monoxide Detector, 1x Protective Case, 3x AAA Batteries, 1x User Manual. We also provide a 36-month after-sale service and lifetime technical support. Please feel free to contact us if you have any questions or concerns

Easy to Install: The co alarm and comes with screws for easy installation on walls or ceilings. Powered by 3 x 1.5V AA batteries (not included),It requires no hardwired, portable and easy installation,no need for socket, The battery means constant monitoring, even if there's a power failure! co detector battery can be used for about 36 months,It is convenient to replace the battery and has a long service life.

High Accuracy & Reliability: Features an advanced electrochemical carbon monoxide sensor that accurately detects real-time CO lcarbon monoxide levels.

Instant Alert: When carbon monoxide detectors rise to alarm levels, CO sensor detects CO, the red LED will flash,LCD Blue back light will be lighted, An early warning will be delivered through a loud 85-decibel alarm.

Self-test Function and Informative LCD: The unit will sound “chirp” and red LED flashes once as power up, “888” on the LCD Then pressing the test button, the unit will sound beeps with red LED flashes. Displays real-time CO levels and remembers dangerous CO levels since the last preset. ’Err’ on the LCD to indicate the unit is malfunctioning. ‘Lb' on the LCD toindicate it low battery and need replacement. “000” displays on the LCD for 3 seconds and then enter in normal operation mode.

Wide Application: The carbon monoxide detectors is suitable for living rooms, kitchens, bedrooms, offices, hotels, ,dormitories and portable co2 detector for travel,etc. It can effectively prevent fire accidents and provide reliable protection for your family's safety.

2-in-1 Protection: This combination detector protects against both smoke and carbon monoxide

Wireless Interconnection: When one alarm sounds, all alarms will go off，and combination alarms for maximum home protection

10-Year Sealed Battery: This wireless alarm features a 10-year lithium battery and will give a low battery warning

Test/Silence Button: The single push of a button will either test or silence all units in the system

Easy to Install: This smoke and CO detector is easy to mount onto any wall or ceiling using the included accessories

【3-in-1 and Portable Design】Gray Rhino co meter combined co detector, room thermometer and humidity meter, display and monitoring co value, temperature, humidity in real-time. It with 3.5 x 2.1 x 0.6ins mini size, can be put in pocket easily. Also, it has 7.8ins lanyard, foldable kickstand, can be hanging and stand-up. It is perfect for outdoor tents, vacation, hiking, picnic, barbecue, indoor, home, living room with stove, wood fireplace, kitchen, bedroom, bathroom, garage, cellar, hotel.

【2.48" HD Multi-functional Co Monitor】Gray Rhino portable co detectors build in HD 2.48" IPS display, and high accuracy co sensor, which refreshes each 2s, to detect surrounding co value quickly, detecting range is 0-999PPM, ±5PPM. At same time, it could be used as indoor thermometer, the temperature range is 14°F ~ 122°F,±5%. Also it could be used as hygrometer, the humidity range is 0 ~ 95%RH,±5% RH. This multifunctional carbon monoxide detector is very convenient for traveling and house.

【Type-C Rechargeable Portable Co Detectors】As to make it be more eco - friendly and increase its working time, Gray Rhino carbon monoxide detectors equipped 1000mAh battery, match with newest chip, those will make the co detector keep working about 72 hours. And the battery can be charge quickly in 5 hours by Type-C plug. Always focus on the most important demands and do it best, this is Gray Rhino product's feature.

【Easy to Use】Gray Rhino co gas air quality monitor is easy to operate. 1. Long press "ON/OFF" button to turn on/off co detector device. 2. Short press "ON/OFF", change °F to ℃. 3. Press "G", to adjust screen brightness, there is 3 brightness modes. 3. Press "S" to switch alarm beep on/off. The beep will be activated when co value over 50PPM. It can be shut down by pressing "S". But when it over 200PPM, the alarm always issued automatically, can't be shut down by manual, until it less than 200PPM

【Premium Quality and Shopping Confidence 】Gray Rhino design this CO detector, in technical, we keep its versatility, high sensitivity, power long lasting. For outlook, we make it to be modern, compact and portable, with small pocket size, let it can be more suitable for normal family, apartment. Also, this product is guaranteed for 365 days from the time of purchase. If you are not satisfied with the product or have any questions, please feel free to contact us, we will reply within 24 hours.

High Quality Carbon Monoxide Detector: The portable carbon monoxide meter is made of high-strength ABS material, which is sturdy and durable. High-precision electrochemical sensor can more quickly and accurately monitor the CO concentration in the surrounding environment.

Easy to Use: Install the battery, long press the power button to turn on the handheld CO monitor and wait 28 seconds to warm up. You can press the “Hi” button to adjust the screen brightness, and press the "Lo" button to turn on or turn off the alarm.

LCD Display & Audio Alarm: The 1.1'' LCD screen displays the real-time CO concentration from 0 to 999 ppm, buzzer status and battery level. When the CO concentration exceeds the specified level (50 ppm), the entire screen will turn red and a loud audible alarm will sound. When the battery voltage falls lower than the working voltage, the device will sound an audible alarm of "di-di-di" every minute. After the fifth alarm, the device will automatically turn off.

Battery Powered & Power Saving Mode: This pen-type CO detector is powered by 2x 1.5V AAA batteries (package includes). In order to save battery life, the carbon monoxide alarm detector will automatically turn off the screen backlight and enter power saving mode after about 1min of no operation. NOTE: In power saving mode, the gas sensor continues working and monitoring the carbon monoxide concentration. You can press any button to light up the screen again.

What You Will Get: 1x PUTECCH HD07 Battery Operated CO Detector, 2x AAA Batteries, 1x User Manual and 1x Lanyard Ring. Please feel free to contact us if you have any questions or concerns. We provide 12-month product service and lifetime technical support.

【Koabbit Combination Gas & Carbon Monoxide Detectors】Plug and play, easy to install and easy to read.

【High Sensitivity Sensors】The gas and carbon monoxide detector contains a catalytic combustion sensor and an electrochemical sensor, both of which are highly sensitive and accurate, allowing you to detect conditions in a timely manner.

【LCD Display & 85 High Volume Alarm】When the combustible gas or carbon monoxide gas reaches a certain level, the gas detector will display the gas concentration value and sound an alarm, allowing you to quickly determine and make the right choice.

【9V Battery Backup 】A 9V battery backup can be installed to avoid the hassle of power outages.

【Combustible Gas Detection Range】LPG(Methane), natural gas, coal gas, gas fuel, artificial gas, liquefied petroleum gas, liquefied natural gas etc.

【Power Saving Design】: the display will turn off automatically when no dangerous gas is detected.

Tips:Package does not include 9V battery

【All integrated 5in1 design】Our Gedsffati Multi-fuctional carbon monoxide detectors inegrated 5 detecting sensors: CO sensor, Temp sensor, humidity sensor, atmos sensor and altitude sensor. All the data shows on the 2.48'' HD screen, Perfect design for outdoor & indoor air detecting.

【144 hours battery life】Our 5in1 CO detectors is built-in 2000 mAh efficient lithium batteries and with the power-saved mode(Screen auto off after 30s, and sensors is still working.), which provides a 144 hours battery life, long-lasting enough for your need. Type-C charge support.

【Portable mini compact CO detectors】Size: 3.4x2.2x0.86 inches, weight:3.5 oz.It is mini size and lightweight design 5in1 CO detectors, convenient for carrying, or hang it anywhere with lanyard.

【New upgraded accurated CO sensor built-in】CO detecting range: 0-1000 ppm. Alarm mode: 0-5ppm, No alarm, and green indicator breathing flash; 51-200ppm, Alarm sound "di" every 2 mins, Orange indicator light up; 201-1000ppm, Alarm sounds continuously, Red indicator light up.

【Wider detecting range for dairly use】CO detecting range: 0-1000 ppm; Temp range: 14℉-140℉; Humidity range: 5%-95% RH; Atmos range: 300-1100 hPa; Altitude range: -500-9000 m.

【3-in-1 Multifunctional CO detector】MOES portable carbon monoxide detectors are not only capable of detecting CO levels, but also temperature and humidity. With a 2s refresh rate sensor, we can quickly determine the surrounding CO value and overall air quality, real-time knowing the environment is safe or not. CO levels, temperature and humidity data is displayed on a colorful HD screen clearly.

【Built-in 1000 mAh battery & 120H working time】MOES portable detector is designed with your mobility in mind. Increase the working time to 120h, we choose the newest battery and energy-save sensor. And also our CO detectors support type-c fast charging, protocol with a power of 10~65W.You can use your own fast charging adaptor and cable to charge it full in 1 hour.

【Portable design CO detectors with lanyard & Magnet】MOES mini CO detectors are designed to be portable and convenient. With dimensions of 2.95x2.72x1.18 inches, Very portable. The strong lanyard allows you to hang it anywhere you want, such as on the wall, backpack, tent inside, car, RV, and more. Additionally, the built-in magnet allows you to easily attach it to metal items. The flat bottom of the detector enables you to conveniently place it on a table.

【More accuracy real-time CO detectors】2s refresh time detecting Carbon monoxide / Temperature / Humidity. [CO range:0-1000ppm; CO Sound Alarm Range: default, 50 ppm. Alarm range customizable setting range];[Temperature: -10℃ 50℃ (± 1.5 C) / 14 F 122 F (± 2.7°F)]; [Humidity range:0% 95% RH (±5%)]. Please carefully read the manual before planing to change the CO alert value.

【Widely use compact and portable CO detectors】With compact and portable design, our carbon monoxide detectors is perfect use for outdoor and indoor occasions. We can use it in bedroom, living room, kitchen or cellar. And also, it is a perfect tool for detect air safe when traveling, Hotel trip, in car, RV travel, camping, picnic, business trip, or indoor barbecue .

Reliable Protection: Ensure your safety with our battery powered carbon monoxide detector. 3 in 1 carbon monoxide detector alarm, humidity and temperature monitors all Integrated in the travel size CO detector body. Real time detects harmful CO gas humidity, temperature in your car, camper, RV, hotel, camping tent, garage, basement, or home, providing you with peace of mind.

Travel Carbon Monoxide Detector Alarm: FuBegi battery operate carbon monoxide detector alarm is equipped with a notification alarm function which can be turned off. When the value exceeds 50PPM, an alarm will be issued. As the PPM value increases, the frequency of the alarm will increase. If you need to turn off the alarm sound, you can turn off the alarm sound. A must have for hot tent camping! No complicated setup required, ensuring quick and efficient use.

Portable Camper CO Detector: Portable and compact design (dimensions: 2.4 x 2.4 x 0.78 inches), this RV camper CO detector alarm is equipped with a stand and lanyard design. The small CO detector is light weight so you can just clip it onto your bag, allows you to easily place the carbon monoxide detector in any desired location such as house, boat, basement, garage, truck, aircraft, stove heating, kitchen, bedroom, living room and other confined spaces.

Concentration Range: New Electro chemical sensor upgraded built-in new upgraded sensor makes it more accurate and long lasting detect carbon monoxide. Larger detection range: CO range: 0 to 1000PPM; Humidity range: 0% to 95%RH; Temperature range: -4 to 140℉. The cycle alarm works when the CO is over 50ppm. 50-100ppm: 3 times alert in 3mins, 101-200ppm: 5 times alert in 5mins, 200ppm upper: continuously alert.

Mini Rechargeable CO Gas Monitor: under low brightness conditions, the standby time can reach 30 hours. In a high-brightness environment, the standby time is 14 hours. Due to the portable and compact design, the battery life is up to 30 hours, but it is rechargeable and sensitive. This is a potentially life-saving carbon-monoxide detector. Whether you're on the road, in a temporary accommodation, or at home, this detector is portable and versatile to meet your CO detection needs.