| Sensors: | LON® 4-wire techniques, galvanically  isolated, data transfer 78 kB/s  24V sensor supply  | 
        
| Ranges: | adjustable via software | 
| Digital input: | Opto-isolated input with isolated voltage supply (siren cancel, ventilator fault) | 
| Digital outputs: | Floating Control outputs max. 230V 2A Warning outputs max. 230V 4A  | 
        
| Battery operating time: | 10 hours with mains failure display >1 hour optional, retaining all functions  | 
        
| Standard output signals: | Serial interface RS 232 Analog output, 4-20 mA  | 
        
| Ambient temperature: | -10 °C to +40 °C | 
        
| Dimensions (WxHxD): | 240 x 160 x 90 mm | 
| Mains connection: | 230V ~ / 50 Hz; 115V ~ / 60 Hz  or optionally 24 V= 50 VA  | 
        
| Test certificate: | TÜV acceptance test according to VDI 2053, together with ADOS 592 TOX CO LON® | 
| Approval symbol: | 931-981289 |