NOTES!! Default power supply is DC24V Pls contact us if you need other measuring range, cable length, output signaland power supply .TKS . QDY30A submersible Water Level Sensor, its 304 &316 stainless steel and hermetically sealed housing make it suitable for most industrial liquids and oils. . The welded housing is tested in-house via a helium leak tester to ensure proper protection. Ventilation tube in the cable automatically compensates for changes in atmospheric pressure above the tank. . The conductors of the cable are also isolated from the outside environment to keep the level sensor operational for long-term use. Technical Specifications Model QDY30A liquid level transmitter Measuring Range 0~0.5~500m H2O (Optional) Power supply 24VDC Output Signal 0-5v , 0-10v Accuracy 0.5%FS Response Time 1ms (up to 90%FS) Long-term Stability 2F.S/Year Medium Temperature -20~85 WorkingTemperature -40~80 Overload Capacity 200%F.S Insulation Resistance 100M/250VDC Sensitivity Drift 2%F.S Zero Drift 2%F.S Protection IP68 Measuring Medium Various medium which is compatible with SS304 Mechanical Vibration 20g (20~5000Hz) Impact 100g (11MS) Material Junction box: Low content Cu-Al alloy Probe: Stainless steel Cable: Polyurethane cable Application Static liquid level, Liquid tank, Sewage water, Well, Lake,etc.