Applications
Specially design for cabs of hoisting machinery (tyre crane, crawler crane, overhead traveling cranes, etc. ), harbors machinery(gantry cranes, bridge crane, etc).
Major functions and features
Speaking prior to alarm.
Volume adjustable.
Microphone & Loudspeaker available.
Various tones to choose from.
Visible and audible alarm synchronous (optional).

Several kinds of combination mode for choose.
Nice appearance, convenient opeartion.
Specifications
Supply voltage: DC12V /DC24V: Standard: GB/8108-1999
Alarm tone: ABE (customized available): Power: 10W 25W 50W
Speaker: 80W/8Ω : Sound level: 106dB~110dB
Ambient temperature: -20 ~ +70(degree Celsius)
Material: Aluminum alloy
Humidity: 10% ~ 95% (non-condensing): Weight: 1kg.