Wireless indoor siren MD-313R, red

Wireless indoor siren MD-313R, red

Wireless indoor siren with 100dB sound alarm.

-Audio power 100 Db
-No 12V power supply required
-Operates with 3 1.5V type D batteries (included)
-Compatible with DS-7640 panels

Compatible with DS-7640KIT and HA-VGW alarm units.

Specifications
Static current: 0.7 mA
Voltage: 4.5V
Transmit/Receive frequency: 433MHz/868MHz
Alarm decibel: 100dB
Alarm current: 500mA
Transmit/Receive distance: 80m (open area)
Battery: 3x D LR20