HY-SA21A-W2(868) - AirShield Wireless Smoke Detector, Audio Visual Siren, 85 dB

Wireless photoelectric smoke detector, siren: 85dB, LED indication of operation, alarm, error, low battery voltage, ceiling installation, 868MHz two-way wireless technology, AES-128 data transmission security, transmission distance: 1000m (open space), support automatic switching of RF channels, configurable remotely using an application, sound alarm works autonomously even when contact with the control panel is lost, easy installation, power supply: 1x replaceable battery: CR123A, service life 3 years.

Type of device	wireless photoelectric smoke detector
Power supply	1x replaceable battery: CR123A, life 3 years
Frequency	868 MHz, two-way wireless technology, AES-128 encryption
Signal range	up to 1000 m (free terrain)
Temperature detection	chamber with photoelectric sensor
LED indicator	LED indication of operation, alarm, error, low battery voltage
Function	support for automatic switching of RF channels, remotely configurable using the application
Installation	on the ceiling
Design of the cover	plastic
Color	white