◎ Double flashing light.
◎ Built-in tweeter.
◎ 2-way communication with alarm control panel.
◎ Can arm/disarm by remote controller.
◎ with tamper alarm.
◎ Can enroll 16wireless devices.
ITEM: MD-328R Alarm Decibel：around 100db
Static current≤0.7 mA Alarm current≤500mA
Voltage:6V Transmit /Receiving distance=80M(OPEN AREA)
Transmit /Receiving frequency 433MHz/868MHz
