Compare Safe Tech Wireless Radiolink Interlinked Smoke Alarm - White Price

A wireless interlinked fire alarm/smoke alarm, compatible with other Safe-Tech detectors to create a wireless safety network. (CO detector, Remote controller, WiFi interconnected smoke alarm) We suggest a maximum of 20-50 pcs connected on one floor of the building for best connection performance. If one alarm goes off, all connected alarms will go off. The alarm will cover the whole house even if you are in another room, A loud 85-decibel siren is designed to wake even the soundest sleepers. With a built-in sealed 3V Li battery that can last up to 10 years*, no battery replacement within 5-8 years is needed which will save the money and time for replacing the battery. Longer battery life, longer protection! Big test and Hush button and remote controller (not included). The test button is larger than the traditional smoke alarm, and the button can be easily released in the event of a false alarm without tools. Remote controller (not included) helps to test & silence the alarm.