| Content | Technical parameters | 
| Working voltage | DC18V-27V powered by control panel, modulation type. | 
| Wiring | Two-wire, polarity-free | 
| Working temperature | -10~+50℃ | 
| Storage temperature | -20~+55℃ | 
| Relative humidity | ≤95% | 
| Monitoring current | ≤0.3mA(24V) | 
| Alarm current | ≤1mA(24V) | 
| Indicator | Dim light when in normal monitoring state, steady on when alarms. | 
| Dimensions | 115mm×155mm×102 mm | 
| Addressing method | Electric encoder | 
| Addressing range | 1-200 | 
| Protection area | 60-80m2 | 
| Communication distance | 1500m | 
| Explosion proof mark | Ex d ib IIB T6 | 
| Protection grade | IP66 | 
| Applied standards | GB 4715-2005 Smoke detectors – point detectors using scattered light, transmitted light or ionization GB3836.1-2010"Explosive atmospheres - Part 1: Equipment-General requirements" GB3836.2-2010"Explosive atmospheres - Part 2: Equipment protection by flameproof enclosures 'd'" GB 3836.4 "Electrical apparatus for explosive gas atmospheres Part 4: General requirements"  | 


