NOTES!! This link is for 3 wires 0-10v output ,DC24V powersupply. (DC10-30V can be used) If you need other measuring range ,output signal,cable lengh,pleasecontact me for a customization,thankyou ProductDescription .QDY30AsubmersibleWaterLevelSensor,its304&316stainlesssteelandhermeticallysealedhousingmakeitsuitableformostindustrialliquids. .Theweldedhousingistestedin-houseviaaheliumleaktestertoensureproperprotection.Ventilationtubeinthecableautomaticallycompensatesforchangesinatmosphericpressureabovethetank. .Theconductorsofthecablearealsoisolatedfromtheoutsideenvironmenttokeepthelevelsensoroperationalforlong-termuse. TechnicalSpecifications Model QDY30A liquidleveltransmitter MeasuringRange 0~0.5~500mH2O(Optional) Powersupply 24VDC OutputSignal 4~20mA Accuracy 0.5%FS,0.2%FS ResponseTime 1ms(upto90%FS) Long-termStability 2F.S/Year MediumTemperature -20~85 WorkingTemperature -40~80 OverloadCapacity 200%F.S InsulationResistance 100M/250VDC SensitivityDrift 2%F.S ZeroDrift 2%F.S Protection IP68 MeasuringMedium VariousmediumwhichiscompatiblewithSS304 MechanicalVibration 20g(20~5000Hz) Impact 100g(11MS) Material Junctionbox:LowcontentCu-Alalloy Probe:Stainlesssteel Cable:Polyurethanecable ApplicationApplication Staticliquidlevel,Liquidtank,Sewagewater,Well,Lake,etc.