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！