Shanghai Nanhua Electronics Co., Ltd.
Nanhua - Model AS21 -Crane Loudspeaker & Controller Kit
Used in the cabs of engineering machinery (travelling cranes,crawler cranes, truck cranes and etc.),port machinery（gantry crane， overhead travelling cranes and etc.).
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- Speaking prior to alarm. Volume adjustable.
- Microphone & Loudspeaker available.Various tones to choose from.
- Visible and audible alarm synchronous (optional).
- Power off memory, can hold the setting data.
- Several kinds of combination mode for choose.
- Nice appearance, convenient opeartion.