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.
Products description and application
Used in the cabs of engineering machinery (travelling cranes,crawler cranes, truck cranes and etc.),port machinery（gantry crane， overhead travelling cranes and etc.).