Skip to main contentSkip to footer
1 of 7

Overview

This combo smoke and carbon monoxide detector uses high-accuracy sensors to detect both threats quickly and reliably. Features include a loud 85dB alarm, LCD CO level display, low battery alert, and LED status indicators. Battery-powered for easy installation in homes, kitchens, garages, or hotels—providing essential protection with test/silence button and real-time monitoring.

Smoke Detector Carbon Monoxide Detector Combo with Digital Display and Sound Light Alarm, 2-in-1 Smoke & CO Alarm with Battery Operated for Home, Travel or RV 1 pack

Model: CH-0725-22
Web Code: 19399350
Sold and shipped by | 3.1 seller rating (19 reviews)

Available for deliveryAvailable online only

Delivery times vary by location. Most Marketplace items leave sellers' locations within 2 business days. Allow additional time for shipping.

Seller Return Policy

Warranty

Check with the manufacturer for details.

For Quebec residents: See the Availability Guarantee disclosure in the Specifications section below.

Smoke and Carbon Monoxide Detector Beeping once Detecting These Two Gases.

Smoke Co Alarm Detector Using High Accurate Electrochemical Sensor Alerts you to Carbon Monoxide Danger, and Photoelectric Sensor Detects Smoke While Minimizing False Alarms. Insurance Safety of your Life.

3 Pieces AA Battery - Powered Smoke Co Detector. Easy to Install. It Will Mind You Up To Change Batteries With Continuous Beeping Every 30 Seconds When The Power is Close to Run Out. The Low-Level Blink Indicator Shows it's Working.

Apply for All The Place to Produce Smoke And Carbon Monoxide, Such as Kitchens, Bedrooms, Hotels, Apartment, Markets. Also Useful for BBQ Situation, Using Charcoal Warm, Garage, etc.

Protect yourself and your family from the silent danger of carbon monoxide with our top-of-the-line Carbon Monoxide Detectors. With its advanced detection capabilities, our Carbon Monoxide Detectors ofer you an added layer of security and peace of mind. If you have any questions about our smoke and carbon monoxide detectors, please feel free to contact us. we will provide you with a lifetime free after-sales service.

CO Smoke Alarm Detector

The combination smoke and CO detector detects both smoke and carbon monoxide faster and more accurately using a photoelectric smoke sensor and an electrochemical CO sensor, protecting your home from two potentially deadly threats.

High-accurate electrochemical sensor(the most accurate CO sensor)

Infrared photoelectric sensor(the best sensor to detect smoke while minimizing false alarms)

LCD concentration PPM

smoke and carbon monoxide detector

Combo Smoke and Co Detector is Easy to Install

Battery Operated for Convenience

3*1.5V AA dry battery (package not included)

After installing 3 batteries, you can hear the sound of "di", and it starts working normally after 2 minutes. In operation, it displays nothing with a power-saving design. Ultra-long standby time, low current consumption.

Press the button “test”, and the smoke and carbon monoxide detector alarms ≧85db, loud enough to alarm you of the dangers no matter whether you’re asleep in the bedroom or watching TV downstairs.

So easy to install wherever you stay for long periods: drill the two marked installation holes. Tap the two plastic grommets into holes with a hammer. Mount the bracket to the ceiling by inserting and tightening the supplied screws into plastic grommets.

TIPS: Please install the sirens at 0.3~1m below the ceiling because the concentration of carbon monoxide and smoke is smaller than that of air.

smoke co detector

Sound & Flash Alarm & LED indicating Alarm

Green LED indicates normal operation

Red LED Indicates Smoke Alarm

Blue LED Indicates Carbon Monoxide Alarm

smoke carbon monoxide alarm

Test/Silence Button

With a convenient test/silence button, you can manually test the alarm to ensure everything is functioning properly or temporarily eliminate annoying false alarms.

carbon monoxide LCD

LCD concentration PPM

The LCD can indicate real-time carbon monoxide concentration. (For power-saving, it cannot stay showing ppm every second. It only lights up when you press the test button.)

smoke co detector

Battery Powered for Convenience

The CO smoke alarm is powered by 3 x 1.5V AA batteries(package not included) for ease of use.

"Lb" means low battery, and please replace the batteries ASAP.

carbon monoxide detector

Specifications

Item size 4.7 x 4.7 x 1.8 inches

Item Weight 6.4 ounces

Temperature: 0℃-50℃

Relative Humidity: 10-95%

CO detect concentration: 000-999 PPM

Power supply: 3*1.5v AA batteries(tips: without 3*1.5v AA dry batteries in the package)

💡Warm Tips:

1. Due to the difference between different monitors, the picture may not reflect the actual color of the item.

2. Dimensions are measured by hand, there may be a little deviation. Please refer to the actual product, thank you.

3. If you are satisfied with our products, please leave us a positive feedback. Thank you for your cooperation.

4. If you have any questions, please feel free to contact us. Please contact us before commenting. We will reply you as soon as possible, and we will solve the problem properly.

Product Condition
Brand New
Colour
1 pack

For Quebec residents – Disclosure under the Consumer Protection Act

In compliance with Bill 29, Best Buy and third-party sellers on Best Buy Marketplace do not guarantee the availability of replacement parts, repair services, or maintenance information for any products. Coverage provided through any Best Buy Protection programs and applicable manufacturer warranties, if any, remain in place. Please contact the manufacturer directly for information about their availability guarantee.

Shipping Charges

Free standard shipping may be available on orders over a minimum amount (before taxes, fees, and promo codes). Shipping charges may vary based on item size and your shipping address. Want a shipping charge estimate? Simply add an item to your cart, then access the cart and enter your postal code in the shipping estimate section.

Processing Time

Most items ship within 2 business days after an order is placed*. Allow additional time for shipping to your address.
*Please note: If an item you ordered becomes unavailable, you'll be notified and a full refund will be processed within 2 business days.

Shipping Area Restrictions

Shipping is not available in the following areas*:
  • No restrictions in Canada
*Please note: Shipping area restrictions may vary for large items. If an item can't be shipped to your address, we'll let you know during the checkout process.
Product Category
Smart home products
Return/Exchange Period
30 days
Condition
Opened