EACHEN 433MHz RF Strobe Siren RF-ST Works With Sonoff RF Bridge (EWelink APP)

R 400.00
* 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 1