Tarden 4PCS Smoke and Carbon Monoxide Alarm for Home,Combination Dual Sensor Fire Alarm Carbon Monoxide Detector, 2 in 1 Protection,85DB,9V Replace Battery,Test/Silence Button

• 【2-in-1 Dual Protection】 Our 2-in-1 smoke alarm combines an electrochemical sensor for carbon monoxide detection and a photoelectric sensor for smoke detection. It can quickly detect dense white smoke and fine particles, significantly reducing false alarms and providing you with comprehensive safety protection. (Does not support networking or app functionality.)
• 【Audible and Visual Alarms】When carbon dioxide is detected, the smoke and carbon monoxide alarm will emit an alarm sound exceeding 85 decibels and flash a red light—the smoke alarms for home is loud enough to wake you even if you are fast asleep. It will also alert you to low battery power or device malfunctions.
• 【Replaceable 9V Battery】This smoke alarm and carbon monoxide detector comes with a built-in lithium battery that lasts for 3 years. When the battery reaches the end of its life, you can remove it at any time and replace it with a 9V alkaline PP3 battery or a zinc-carbon battery.
• 【Routine Inspection Button】 In daily life, there are often hidden odors from boilers, stoves, and heaters that may pose certain safety hazards. You only need to press button of fire alarms for home to check the safety status at any time. (It is recommended to press the test button every month to confirm the working status of the smoke alarm).
• 【Easy to Use】Simply replace the battery to make installation and maintenance a breeze. Its sleek, compact design complements any home decor, and with all the included accessories, you can mount fire alarm carbon monoxide detector on a wall or ceiling in just a few minutes.

Why Choose Us? Our 2-in-1 smoke and carbon monoxide detector is of superior quality! It features upgraded ABS material, faster detection of carbon monoxide, and a lower false alarm rate. With a built-in replaceable lithium battery, it’s easy to operate and requires minimal maintenance. Product Specifications: Name: smoke alarms for home Material: ABS Color: White Battery: 9V Decibel: 85 Quality Service: If you have any questions about the fire alarm carbon monoxide detector you received, please feel free to send us a message, and we will provide you with the best solution as soon as possible.