Technical Parameters:
| Operating Environment | Indoors, Temperature -10℃~+50℃, relative humidity≤95%(40℃±2℃ non-condensing) |
| Working voltage | Bus, 24V |
| Operating current | Monitoring status:<300uA
Alarm status:<2mA |
| Operating Indicator | The status indicator blinks in inspection status, and keeps on when alarming;
The phone indicator blinks when connecting the telephone jack. |
| Four-wire system | signal wire + phone wire |
| Mounting | Wall-mount 1.3~1.5m from the ground |
| Coding | Addressable |
| Dimension | 90 x 90 x 50mm |
| Telephone jack | Standard Ф6.3 single-track audio connector |
| Certification | EN54 |

















