OXYGENMETERModel:DO-5510HA*-Pcircuit,LCDwithdisplayunit.*Dissolvedoxygenrange:0to20mg/L.*Max.,Min.,Memoryrecallbutton.*DO,Oxygeninair,Temp.,ATC,AutoCal.,%salt.*Diaphragms electrolyteincluded.*Probeheadwithdiaphragmsetandelectrolyteareincluded.*Size:180x72x32mm