1,INTEGRATED CHIP: Using integrated chip, with strong anti interference, high sensitivity, high measurement accuracy and great stability. 2,STAINLESS STEEL MATERIAL: The body and diaphragm are made of stainless steel, resistant to impact, rust and corrosion, can be used for acidic and alkaline liquids. 3,FINE MADE: This transmitter is precisely designed with 3mm pressure hole, 45 degree bevel design, making the measurement more accurate. 4,IP68 PROTECTION: This liquid level sensor is IP68 grade waterproof and dustproof, not afraid of deep water area, more reliable to use. 5,WIDE PURPOSE: This level transmitter is applicable for fire protection water tank, rivers and lakes, acid alkali tank, hydraulic test, etc. Item Type: Liquid Level Transmitter Material: 304 stainless steel, 316L stainless steel, fluororubber, NBR Accuracy: ±0.5 percent F.S Stability: <0.5 percent F.S per year Operating Temperature: -20℃ to and85℃ Storage Temperature: -40℃ to and100℃ Measured Medium: Gas or liquid compatible with 304 and 316L stainless steel, fluororubber or nitrile rubber Electrical Performance: Three wire system Output Signal: 0.5-4.5V Power Supply: 4.75-5.25VDC Electrical Connection: M14 waterproof output line Protection Grade: IP68 Pressure Interface: M20x1.5, throw in type 1 x Liquid Level Transmitter 1 x Manual Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.