Aluminum alloy antenna LHJ50-50

IP Ceiling mounted Coaxial (5 inches)

Inductive Audio Alarm - Solar Powered GYPD-04

Sound column YZ-120

Transmission equipment TX-150

4G receiving device TYN3D-01

Network collection host RP204

Solar power supply system

IP External Waterproof Sound Column - Engineering Type IP702

MP3 Bluetooth Network Power Amplifier (120W)