2 wire 4 wire smoke detector optional
| Model NO. | SR-812PC-2 | SR-812PC-4 |
| Operating voltage | DC10V-30V | |
| Static current | 20uA | 13mA(NC);4mA(NO) |
| Alarm output | Remote LED indicator | Relay output |
| Alarm current | 35mA@DC12V;83mA@DC24V | 9mA(NC);19mA(NO) |
| Installation | Ceiling mounted | |
| Working environment | -10℃~+50℃(≤95%RH No congelation) | |
| Dimension | 100*46mm | |