Smoke Detector Carbon Monoxide Detector Combo 10 Year Battery, Kttrey 2 in 1 CO & Smoke Alarm with LCD Screen and Test/Silence Button, 3 Pack

Kttrey Portable Smoke Carbon Monoxide Detectors, Be Your Smart Security Monitoring Assistant.Are you still worried about your family being threatened by silence smoke and colorless, odorless carbon monoxide gas? Worried that family members won't be able to detect gas leaks in time while sleeping, leading to poisoning or even death? Worried about the short lifespan of the detector, the hassle of frequent battery replacement, can't know the actual CO concentration? Don't worry, Kttrey combination smoke and carbon monoxide detector will perfectly solve all these issues for you! 1. Equipped with both photoelectric smoke sensor and electrochemical CO sensor that work independently of each other.2. Built-in 10-year life sensor and 3V lithium battery, saving the trouble of frequent battery replacement.3. Real-time LEDs and LCD, easy to understand the status of the equipment and CO concentration monitoring. Different response for different CO concentrations.0 PPM: No CO threat50 PPM: 60~90min100 PPM: 10~40min300 PPM: 0~3min4. Multi-scenario Application: Home, office, kitchen, bedroom, baby's room, living room, apartment, travel, hotel, RV, tent, camping.5. Parcel List：2-in-1 Detector * 3, Expansion Bolt * 6, Mounting Screw * 6, Indication Sticker * 3, User Manual * 36. Perfect Gift: Ideal for sending a peace of mind to your family and friends on New Year's Day, Christmas Day, Mother's Day, Father's Day, Birthday and any other holiday!Installation Recommendations:1. The monitoring range of smoke and CO alarm is 215-431 square feet. But it may not sense smoke CO on another level of the house, it is recommended that one unit be installed in a room.2. Install the alarm in the middle of the ceiling where possible. Ensure the alarm is within working distance of all corners of the room.3. Do not install in garages, furnace rooms or bathrooms! Do not install within 4.92ft of cooking appliances.4. Avoid excessively dusty, dirty or greasy areas.

• 【2 in 1 Smoke and Carbon Monoxide Detector】- Combo alarm features advanced photoelectric and electrochemical sensor technology to sensitively monitor smoke and CO gas, while minimizing false alarms. Dual functionality eliminates the need for multiple devices, saving you time, money and space.
• 【10-Year Sensor with Built-In Power】- This smoke & carbon monoxide detector equipped with a 10 year lifespan stabilized sensor and sealed 3V lithium battery, protecting your loved ones from the silent threat for a full decade.
• 【Visualization of CO Levels】- The smoke detector system collects air samples every 10s, the carbon monoxide detector system collects air samples every 16s and clear display of CO concentration levels on the LCD screen. In addition, the 3-color LED indicators give you an overview of the device operating status at a glance.
• 【One-Touch Test & Mute Button】- When a smoke or CO threat is detected, the unit emits a powerful 85dB audible alarm(≥85dB at 3M), providing you with critical time to react and evacuate safely. And the one-touch button design allows you to quickly turn off the alarm and test the device weekly.
• 【Perfect Size for Home & On-the-Go】- Kttrey compact carbon monoxide tester measures only 5.3x5.3x1.0in, 0.44lb, which is not only suitable for home use, keep it in your bag or suitcase when you're traveling or on a business for peace of mind along the way.