Link the Strobe Siren to notify you when an event such as a Smoke Detector or Door Bell is triggered.
• RF: 433MHz
• Rechargeable battery inside: 7.4V/400mA
• Battery Standby: 12-24hrs
• Power input: 5V/1A USB
• 4 work modes: Arm/Disarm/Home/SOS
• Add RF accessories limit: up to 128 codes
• Add RF remote controller limit: up to 5 pcs
• RF receiving distance: 20-30 meters
• Alarm sound: 90db
• One set includes: Strobe siren x 1 and white 4key remote controller x 2
The strobe siren can work with all remote controllers which compatible with Sonoff RF bridge. So you can use your own remote controllers.