... 50mA(under the condition of connection without keyboard display and alarm of buzzer)3: signal output: one channel standard isolation ... , liquid level, temperature and so on.5:display:2*10backlit LCD,displaying instant flow rate,velocity,positive,negative,net totaliser ... ,standard M1 style,high temperature S1H,high temperature M1H)2:insertion transducer(standard insertion B,cement insertion B)3: ...