Pre-Linked】1 x WiFi Smoke Alarm, 2 x Smoke Alarm, 1 x Heat Alarm, 1 x Carbon Monoxide Detector, 1 Remote Control. This bundle has been 'Pre-Linked', after you receive the alrms, you only need to test detectors after switching them on according to the instruction manual and connect the WiFi smoke detector to your mobile phone, pay attention to use 2.4g WiFi.

【Reliable Wireless Interlinked Alarms】 CE-certified detectors, complies with the standards EN 14604:2005 and EN14604 2005/AC:2008. The LED of all the detector for home doesn't flash in normal state. When you sleep at night, there is no annoying flashing LED light, it will not affect your night's sleep.

【Share Device with Your Family】One of the detectors in this kit can be connected to mobile phone(Please check the instructions carefully) After the wifi smoke alarm is bound to Tuya app on your mobile, you can send the link to your friend or family member through the 'device share‘function, and after he/she accepts it, then you can all receive the notification message when the smoke alarm sends out a notification.

【Wireless Interlinked Alarms】Up to 30 wireless alarms can be linked together, when an alarm starts, all alarms go off and each detector can protect an area of 40 square metres. It is recommended to install fire detectors in any bedroom, warehouse and basement. This interconnected smoke detector is covered by a two-year warranty, during the time of use, if you encounter any problems, please feel free to contact me anytime, we will do our best to solve the problem for you!

【10 Years of Continuous Protection&Convenient Installation】High reliability, up to 10 years of continuous operation due to high efficiency and high battery capacity. Saves you from frequent battery changes and provides uninterrupted 24/7 protection, even during power outages. The package contains double-sided adhesive tape as well as the screw set, you can install the detectors for home quickly and cleanly, choose the right installation method according to different ceilings.