[SENSOR MATERIAL]Fule Tank Sending Unit is made of 304 Stainless Steel and rugged construction. The advantages of fuel level sensor are accurate measurement, good shock resistancelong service life corrosion resistance, keep safe，It is the Direct Replacement for Arm Type sender. [WIDE APPLICATION]The fuel sending unit is suitable for automobiles, ships, modified vehicles， engines,engineering machinery, speedboats,agricultural machinery.  [SENSOR SIGNAL]Boat fuel sending unit Output signal: 0-190 ohms,Support 0-190 ohms Fuel Level Gauge and Water Level Gauge.  [MULTIPLE SIZES]The length range is 100MM, 150MM, 200MM, 250MM, 275MM,300MM，etc.Meet your diverse needs. [EASY INSTALLATION]: Operational Temperature: -40°C -+75°C.Easy to install and connect, getting the fuel gage working quickly.Stable output signal, universal style, suitable for all kinds of material tanks. Operation Mode Automatic Rated current 0.5A Contact Type Normally Open Connector Type Screws Output Type Resistance-based Mounting Type Surface Mount