* Photoelectric Smoke Alarm
* Radio Link Frequency 433MHz
* Interconnect 40PCS detectors
* Confroms to EN14604 standard

Key Specifications/Special Features:

* Advanced MCU Expert Algorithm Software to prevent the most smoke alarm fault.
* Power Source: 9V Battery (included).
* Wireless Technology: Uses 433MHz radio frequency to both transmit and receive messages about a hazard in the home; when one Alarm sounds, all will sound.
* Audio Alarm: ≥ 85dB/3m
* Temperature Range: 0°C to 40°C
* Humidity Range: 5%-95% relative humidity(RH)
* Sensor: Photoelectric
* Interconnects: Yes
* Easy to install – Simply mounts to ceiling or wall. No wiring needed.
* Suitable for any room
* Low battery signal
* Test button for simple testing