Large LCD display for easy reading Mini-size and lightweight Can be attached to key ring.It's a good chice for promotion Single key operation,manual ON/OFF,unit conversion,auto power off Four kinds of units in measuring pressure:PSI,Bar,Kgf/cm2,Kpa One CR-2032,3V lithium battery can last 24 months Quantity:96pcs Dimension:42*20*33(mm) G.W.:7.5KGS N.W.:6.0KGS