



Product description





✅【Dual Sensor Protection – Detects Both Smoke & CO】 Equipped with advanced photoelectric smoke and electrochemical sensors, this 2-in-1 alarm detects both smoke and carbon monoxide quickly and accurately. Enjoy 10 years of sensor life, far longer than typical 3-year models, giving your family long-term protection against two deadly threats.
📡【Wireless Interconnected System – Whole-Home Safety】 All alarms wirelessly connect and communicate—when one sounds, they all sound. Pre-linked out of the box for plug-and-play setup, these detectors create a reliable mesh network with coverage up to 980 ft (300m), ensuring every room is protected and everyone is alerted instantly in an emergency.
🔋【10-Year Built-In Lithium Battery – No Wiring Needed】 Forget battery replacements. Each alarm is powered by a sealed 10-year lithium battery, delivering maintenance-free safety with no hardwiring required. Comes with all mounting hardware included for quick and easy installation. Plus, we offer a lifetime free product replacement service.
📊【Real-Time LCD Display & Smart Light Indicators】 The built-in LCD screen clearly shows real-time CO levels (in PPM) and battery status. Smart light indicators keep you informed: Red LED = CO Alert, Blue LED = Smoke Alert.Dense sensor holes provide fast detection while helping reduce false alarms, keeping your family safe and worry-free.
🛡️【UL Testing Report & Lifetime Support You Can Trust】 Tested to meet UL 217 and UL 2034 standards by an ISO 17025/NRTL-accredited lab, this alarm offers testing report protection you can trust. Backed by our lifetime U.S.-based customer support and free replacements, DFGJLVF gives you total peace of mind.

Hope –
Reliable 2-in-1 Smoke and Carbon Monoxide Alarm
This Dual Sensor Smoke and Carbon Monoxide Alarm is reliable and easy to use. It quickly detects both smoke and CO to keep your family safe. The 10-year battery means no wiring or battery changes are needed, and the alarms connect wirelessly—if one sounds, they all do.The LCD screen clearly shows CO levels and battery status, and the light indicators make it easy to know what’s happening. Installation is simple, and everything you need is included.Tested to meet safety standards and backed by lifetime support, this alarm gives strong, long-lasting protection and peace of mind.
Bezli –
Works well
I installed these combo smoke and CO detectors throughout my house about six weeks ago, replacing my old standalone units that were getting close to their expiration dates. The setup was pretty painless – they come pre-linked so I didn’t have to mess around pairing them, just mounted them with the included hardware and they were good to go. The wireless interconnect feature works as advertised, I tested it by pressing the test button on the upstairs unit and all four alarms in different rooms went off within a couple seconds of each other which was reassuring. The LCD display on the front shows the CO level in PPM which is interesting to keep an eye on, mine usually reads 0 but I’ve seen it tick up to 3 or 4 when I’m cooking on the gas stove. The 10 year battery is really convenient since I won’t have to worry about changing batteries or hearing that annoying chirp at 3am like my old detectors used to do. Build quality seems solid, the plastic housing feels sturdy and the mounting bracket clicks in securely. I did notice the kitchen unit went off once when I was searing a steak on high heat with the blue LED flashing, though it settled down pretty quick when I opened a window. Might be worth positioning it a bit further from the stove if your doing a lot of high-heat cooking. The alarm sound itself is loud and effective, definitely enough to get your attention without being overwhelming. The light indicators are helpful – red for CO and blue for smoke makes it easy to tell what triggered it. Coverage range seems good, my house is about 2200 square feet and all units communicate fine even through walls. Installation instructions were clear and straightforward. For the price and the 10 year lifespan its a solid value compared to buying separate smoke and CO detectors, gives me good peace of mind knowing the whole house is covered.
Eric Rocheleau –
Linked Smoke and Carbon monoxide detectors
I needed a product that didn’t require it being hardwired throughout my house and this worked well. It was an easy set up to connect all three so that if one goes off they all go off. I tested it by putting them in different places within my house. When one went off due to smoke they all went off.They came with built in batteries, easy to read directions, screws and wall anchors for easy install. The price point was good too.I didn’t test for Carbon monoxide but overall am happy with the product.
JetRanger –
Smoke and CO Detectors… Excellent Value!
My currently installed Nest smoke detectors are at end of life and Google no longer offers a suitable replacement. I needed to replace them, so off to Amazon I went. I had three requirements, smoke and carbon dioxide detection on the same unit, 10-year battery life, and connectivity between all three units, meaning when one unit goes off they all go off.These units arrived quickly and packaged well. I took them out of the box and set them up. Installation was a breeze. Tried them out with both smoke and carbon monoxide and the main unit sounded and then the other units near instantaneously responded as well. Great! The display on the front is illuminated and it is nice to see what the smoke detector is detecting. It is so important that you have all the smoke detectors in your house go off so that an occupant who may not be in the area detected is alerted that there is an unsafe condition. Seconds matter when there is a fire, especially today with all the synthetics and battery powered electronics in everyone’s house. These units fit the bill perfectly. The fact that they are very reasonably priced and don’t break the bank is an added bonus. Very good deal on these and happy I bought them.
KL –
Easy Setup and Reliable Protection
Super easy to set up once you connect one, the others link right in. I really like that the battery lasts 10 years, so no more annoying chirps in the middle of the night. The alarms are loud, clear, and all go off together, which makes me feel safer knowing the whole house is covered. Simple design too, not bulky on the ceiling. Overall, great peace of mind for me and my family.
Amazon Customer –
Great Detector Set
Super easy set up. They are already all paired and have batteries installed, so they are ready to go. Just place them around the house for protection in every room. I like the display that shows current CO levels.
Judith L Walter –
Installation Awareness
The mounting plate screw spacing does not line up with the domestic electrical junction box spacing used for wired smoke alarms. It was late when I discovered this oversight and had to stop to design and 3d print an ABS cover for the junction box and then mount the smoke alarm plate to that.The screws provided are of terrible quality and should only be used with the plastic drywall inserts. They will break if overtightened. Otherwise the three smoke/CO alarms I purchased seem to be working properly and wirelessly interconnected as adverstised.
Lisa B –
Good product, recommend buying
All 3 work as described, alarm is loud enough to hear. Easy to install. I would recommend, solid device.