Specifications: 1) Measuring class: B 2) Working voltage: DC3.6V 3) Working current: I <= 80mA Specifications:1) Measuring class: B 2) Working voltage: DC3.6V 3) Working current: I 4) Static working current: I 5) Total pressure loss: 6) Operating ambient temperature: 0-45°C7) Operating humidity: <= 95% Intelligent & Integrative Water Meter