Gas meter 1>Accuracy:2.5%(DN<40) 2>Output:pulse,4-20mADC 3>Display:LCD,LED 4>min.velocity ... Gas flow meter is a high accuracy flow sensor.Several output and display methods canbe selected.it can be used in ... ).5.Lubricate with lubicated system(option)6.LCD display7.Multi output pulse,4^20mADC.8.spectrum15,25,40,50,80,100 ... :Less than 95%. LWGQ-300 Field display gas meter with Lithium battery