... .5%(DN<40) 2>Output:pulse,4-20mADC 3>Display:LCD,LED 4>min.velocity of flow:less than 1 ... .Lubricate with lubicated system(option)6.LCD display7.Multi output pulse,4^20mADC.8.spectrum15,25,40,50, ... :Mark"*" means special orderMedia temperature: -20~60 Degree Centigrade.Ambient temperature: -20~50 Degree CentigradeHumidity:Less than 95%. ...