| Operation Voltage | DC18～26V |
| Monitor current | ≤17 mA |
| Action current | ≤20 mA |
| Line system | Four-wire system (Two signal lines MT+ MT-, Two power cords 24V GND) |
| Contact capacity | DC24V 2A |
| Number of contacts | A pair of normally closed (in series with the start line) |
| Dimensions | 154mm×48mm×194mm（L×W×H） |
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ICP 11076333-1
Automatic fire 
Electrical fire 
Fire door monitoring 
Fire equipment 
User information 
Emergency broadcast and 