| Usage condition | ||||
| Operating temperature: | ‘-10~60 ℃ | |||
| Relative humidity: | 20% ~95% | |||
| Environment noise: | 60dB | |||
| Product Feature | ||||
| Sectional area of the conductor (mm) | 0.3 | 0.5 | 0.75 | 1 |
| Intercom distance (M) | ≤480 | ≤480 | ≤1200 | ≤1600 |
| Parameter | SNGA-WFDJ-4 | SNGA-WFDJ-2 | ||
| Working voltage | DC 12V DC6V | |||
| Ring sound Level | ≥70dB | |||
| Noise voltage | ≤10mV | |||
| Wiring number | 4 | 2 | ||






