... cover 11,Parameter labels4,Header casing 12,Photoelectrlc interface5,Battery and holder 13,M-BUS module6,Temperature sensor ... that the product long-term,reliable operation(6)The machine wity high protective performance,Protection design in all ... 0°C-130°CTemperature difference 3K-80KPower supply Battery-powered(or 24DC)Battery life ≥10years(1900mA)Communication Photoelectric in terface,M ...