| Principle | Transit time difference method with the advanced ABM (anti-bubble measurement) system | 
        
            | Pipe diameter (mm) | ⌀50 (⌀80 and ⌀100 versions are coming soon) | 
        
            | Flow velocity range | Minimum 0 to 0.3 m/s or -0.3 to 0 m/s Maximum 0 to 10 m/s or -10 to 0 m/s
 | 
        
            | Flow range | Minimum 0 to 2.11 m3/h Maximum 0 to 70.6 m3/h
 | 
        
            | Power supply | 100–240 V AC (+10% -15%), 50/60 Hz | 
        
            | Power consumption | Approx. 20 VA (AC power) | 
        
            | Arrestor | provided as standard, on power supply port and analog output port | 
        
            | Enclosure | IP66 | 
        
            | Operating environment | -40°C to +60°C, RH 90% or less |