Smoke alarm detector (433 smoke alarm detector, can be used with Sonoff RF bridge 433 to activate APP alarm after smoke or fire. By creating a scene, the alarm can be set to link other eWelink switches)
Note: Battery not included, requires battery model (9V 6F22)
Packing size: 11*10*4cm
3 seconds alarm, sensitive response, using infrared scattering principle, fire smoke alarm for about 3 seconds bursts.
433 Mhz Frequency range means less interference, operating at different frequency to WiFi and longer distances, up to 200m.
Sound and light alarm, when the smoke reaches the predetermined value, the indicator light flashes quickly and emits a green light prompt, and the smoke alarm alarm sounds about 110 decibels.
360-degree smoke detection alarm, no dead angle, reliable.
Built-in 110 decibel sound and light alarm prompt, effective prompt evacuation site, built-in high sensitivity sensing technology, reliable, safe.
Suitable for a variety of scenarios, independent type does not require an external power supply, suitable for families, hotels, office buildings, factories, etc.