高灵敏度检测墙壁听音设备与存储卡插槽（可使用录音）
Model: HY790
功能：
-Continuous monitoring for 100 hours
-Four Audio Choices: A(200MHz); B(800MHz): C(1200MHz); D(partition bougie monitoring)
-Sonde's sensitivity: -70db,
-max times of amplifying the audio: 2000 times
-Penetrability: Cement wall, Steel wall, wooden wall, iron wall, glass and air brick
包装内容：
1 x Wall Listening Device
1 x Power Adapter
1 x Sonde
1 x Bougie
1 x Earphone
1 x User Manual
存储卡不包括在内！
功能：
墙壁之间清晰的接收
针是用于注入在门或墙壁
它也具有录音功能
-Continuous monitoring for 100 hours
-Four Audio Choices: A(200MHz); B(800MHz): C(1200MHz); D(partition bougie monitoring)
-Sonde's sensitivity: -70db,
-max times of amplifying the audio: 2000 times
-Penetrability: Cement wall, Steel wall, wooden wall, iron wall, glass and air brick
包装内容：
1 x Wall Listening Device
1 x Power Adapter
1 x Sonde
1 x Bougie
1 x Earphone
1 x User Manual
存储卡不包括在内！
