PRODUCTS
What is a Long Range Acoustic Hailing Device?
It is movable and can transmit highly clear sounds to a long distant. Bluetooth and external USB memory are supported. MP3 file playback and microphone broadcasting are also available.
Acoustic Hailing Device PROPA-250P / 250PX
| – Superior Voice Intelligibility and Highly clear communication up to 1km |
| – High output of 143dB, 1km broadcasting distance(82dB) |
| – Bluetooth 3.0 support (connected to smartphone) |
| – External USB memory available |
| – MP3 file playback, microphone broadcast |
| – Handheld dynamic microphone |
| – Maximum output limit available |
| – Embedded Amplifier and Audio Controller |
| – All-weather use |
View the Products
PROPA-250P Components
| Basic Components | Additional Components |
|---|---|
|
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PROPA-250P Specifications
| Items | Specifications | |
| Max. SPL | 250P – 143dBC / 141dBA 250PEX – 145dBA(Peak)(@1m Front) |
|
| Directivity | ±15° (2kHz Sine, -3dB) | |
| Frequency Response | 500Hz~5KHz | |
| Range | Ground | 500m(88dB), 1km(82dB) |
| Ocean | 500m(85dB), 1km(79dB) | |
| Dimensions | 280 × 337 × 250mm(W × D × H) | |
| Weight | 7kg(250P, Except Accessories) | |
| Power Input | 100∼230VAC or 12VDC or 24VDC / Select one | |
| Power Consumption | 150∼300W, it depends on Power Input | |
| Audio Controller | Copy from USB memory MP3 file Playback Character LCD(Backlight) – Sunshine Readable Handheld dynamic microphone |
|
| ETC | Can limit Max. SPL for hearing protection as customer’s request. Embedded AMP, Audio |
|
Main Features of Acoustic Hailing Device
- Since it broadcasts with directivity and high power, it can transmit highly clear sounds to a long distant (1 ~ 3km).
- With maximum output above 143dB, it can get over the noise of the surrounding area and can provide large and clear communication and warning signals to the inside of vehicles, ships or buildings, overcoming the limitation of the existing broadcasting system (P.A. System).
- It is possible to broadcast using a sound source and a microphone.
Sound Pressure Level vs Distance
– 30~50dB
Quiet library, noise in the woods, bedroom
– 50~60dB
General office noise
– 60~70dB
Noise on large ship deck
– 70~90dB
Small ship engine noise (above deck)
– 80~100dB
Noisy construction site, road noise
– 120~130dB
Jet noise (100m)
– 130dB
Above, we started to feel pain
– 160dB
Rocket firing noise
– Theoretically, We can hear sounds at 88dB at 500m, 82dB at 1km, and 68dB at 5km. –
| – 30~50dB | Quiet library, noise in the woods, bedroom |
| – 50~60dB | General office noise |
| – 60~70dB | Noise on large ship deck |
| – 70~90dB | Small ship engine noise (above deck) |
| – 80~100dB | Noisy construction site, road noise |
| – 120~130dB | Jet noise (100m) |
| – 130dB | Above, we started to feel pain |
| – 160dB | Rocket firing noise |
– Theoretically, We can hear sounds at 88dB at 500m, 82dB at 1km, and 68dB at 5km. –
Environmental Certifications
- Random Vibration : MIL-STD 810F, Method 514.4
- Shipboard Vibration : MIL-STD-167-1A
- Shipboard Shock : MIL-STD-910D, Class I
- Shock : MIL-STD-810F
- High Temperature Operation : MIL-STD-810F, Method 501.4
- Low Temperature Operation : MIL-STD-810F, Method 502.4
- Operating Humidity : MIL-STD-810F, Method 507.4
- Salt Fog : MIL-STD-810F, Method 509.4
- Safety Standard : MIL-STD-1474D
- EMC Standard : FCC Part 15 Class A Radiated and Conducted Emissions
- Water and Dust Protection : IP66
Fire Evacuation Broadcast, Public Place Guide and Evacuation Broadcast, Valley Evacuation Broadcast due to heavy rain, and Coastal Accident Prevention & Evacuation Broadcast
Illegal Activity Warning, Beach Announcement, Access Control Broadcast, Crowd Control
Military Training control, Anti-Piracy, Major Facility Intruder Warning, Preserving Wildlife & Protecting Assets
Traffic Control, Prevention of Secondary Accident, Traffic Accidents and Foggy Broadcast, Emergency Evacuation Broadcast
