Product Profile:
It has the functions of pre-emption, air attack, relief, disaster alarm and stopping in accordance with the state regulations.
The sound source part is controlled by a micro-computer chip, which has strong anti-interference ability and high control precision.
One microphone input, one line input, can be amplified and connected with external sound source.
AC/DC interrupt-free automatic power conversion system can meet emergency requirements.
Built-in monitoring loudspeaker can monitor alarm sound indoors; AC and DC dual-purpose.
technical parameter：
| AC power supply voltage | AC 220V | Working Current | 4.5A |
| No-load voltage | 58V-59V | No-load current | 0.1±0.1A |
| Voltage with full load | 52.5V-53V | Full load current | 18A±1A |
| Battery Voltage | 48V | Battery charging current | 3A-5A |
| Output impedance | 2.75Ω | ||
| output power | 1000W | ||
| Microphone Sensitivity | 25mV | ||
| MIC Input Impedance | 600Ω | ||
| Audio bandwidth | 300Hz～3200Hz | ||
| Distortion | ≤10％ | ||
| Sound pressure level at 5 meters | Over 119dB meets the national civil air defense standard | ||
| Working environment temperature | -35℃～+55℃ | ||
| Shape size | 500 * 380 * 192 (length * width * height) | ||
| Alarm weight | 16KG | ||
Note: The remote control interface can be matched with any remote control manufacturer in China.