The official Amazon store is offering its interconnected smoke and carbon monoxide detector combo for $21.49 shipped. Compared to its $43 price tag, it saw a few discounts over the past year, with Christmas sales seeing the biggest price drop to $29. Today's deal comes in as a huge 50% discount off the going rate, which our previous mention by $8 and hits a new low. This smoke and carbon monoxide detector is designed to provide full coverage of your home by connecting wirelessly to up to 11 other detectors, keeping you informed via the multiple alert modes, LED indicators or the loud siren. It features an easy-to-use LCD screen that gives you real-time data such as CO levels (from 30 to 999 ppm), battery status and even operational updates as they become available. More smart devices with discounts: And for more smart home upgrades, check out our coverage of the ongoing 50% off vac 2 robot vacuum and mop combo. It has a powerful suction power of 3,000 Pa and a unique oscillating mop system that can tackle the most stubborn dried stains on your hard floors. It also features visual navigation technology and 3D obstacle avoidance to help you get around as efficiently as possible. In the same post you will also find more Yeedi models for which discounts apply. And when you're done, head over to our smart home hub for more ideas and ways to bring your space further into the 21st century. Wireless Smoke and Carbon Monoxide Detector Features: 【Latest US Smoke Detection Standards】With the latest photoelectric technology, the meross combination smoke and carbon monoxide detector provides more accurate and reliable detection of smoke and fire events than others. Free from annoying false alarms caused by cooking or steam from the shower. 【Solid and Durable Protection】Equipped with 3 replaceable AA batteries, the meross smoke and CO detector ensures uninterrupted protection even during power outages. With a remarkable lifespan of 10 years, this detector offers both economic and practical benefits. 【User-friendly LCD Display】Real-time CO levels (30-999 PPM), battery status and operational updates are displayed on this smoke and carbon monoxide detector. Stay informed and take control with our easy-to-use interface. A low battery warning ensures that the battery is replaced in a timely manner. 【Enhanced Safety with Multiple Warning Modes】The meross combination detector includes an 85 dB buzzer, LCD display and LED indicators. The loud siren is sure to wake even the heaviest sleeper, while the flashing red light and clear icons on the LCD screen provide visual cues for quick action. Subscribe to the Homekit.Blog YouTube channel for the latest videos, reviews and more!