Remote Controlled
Acoustic Hailing Device
PROPA-2700R

Emergency Alert System PROPA-2700R
| PROPA-2700P specifications |
Catalog Download |
|---|---|
| Max. SPL | 161 dBA (Peak) (1 m in front) – Korea Research Institute of Standards and Science test report |
| Sound Projection | ±15° (2kHz Sine, -3dB) |
| Frequency Response | 500Hz~5KHz |
| Communication Range | 3km(91dB) |
| Tilt | Range -60° ~ +60°, Speed 15°/s, Resolution 0.1° |
| Pan | Range -140° ~ +140°, Speed 30°/s, Resolution 0.1° |
| Camera | 32x Optical Zoom, 1920×1080 pixel, 30 frame/sec |
| Thermal Camera (Option) | 100mm Optical Zoom, 640×480 pixel, 9 frame/sec |
| Dimensions | 1610 × 550 × 1420 mm(W × H × D) |
| Weight | 190kg |
| Power Input | 210~230VAC |
| Power Consumption | 5.4kW |
| Operating Temperature | -30°C ∼ +60°C |
| Case | Fully sealed stainless steel enclosure, 660 x 600 x 1140 mm, 119 kg |
| Console | 17-inch monitor, 8th generation i7 CPU, 8GB RAM, 256GB SSD Built-in control software |
PROPA-2700R Names of each part


| Speaker Main Components |
|---|
| · High-power directional speaker main unit (9 horns, 18 units) |
| · Up-down and left-right drive mechanism (motor, reducer, motor driver) |
| · Stand and frame |
| · Sighting device |
| · Camera assembly (camera/laser pointer) |
| · Power supply unit |
| · Network Control Module |
| Control Housing Components |
|---|
| · Stainless Steel Case |
| · Network Audio Controller |
| · Amplifiers(1800W) : 3ea |
| · Mixer, Spare Driver Unit : 2ea |
| · Network Control Switchboard |
| 상단의 내용을 확인해주세요. |
| 상단의 내용을 확인해주세요. |
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.
- 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 |
PROPA-2700R Environmental Certifications
- Maximum Sound Pressure Level Test Report
- Salt Fog : MIL-STD-810F, Method 509.4
- Water and Dust Protection : IP66










