Features: 1.316 Stainless Steel Material: Made of premium stainless steel material, this fuel sending unit is strong and sturdy, rust and corrosion resistant, which ensures a long life span. 2.Reed Tube: The water level sensor is a reed tube, which is durable and reliable, and the output signal is stable. 3.Wide Application: This fuel sending unit is suitable for ships, cars, trucks, buses and the ocean. It is applicable to oil level gauge, water level gauge and any liquid without impurities. 4.Easy to Install and Connect: The fuel sending device is equipped with washers, mounting screws, text instructions and illustrations; The wiring instructions are simple and easy to understand. 5.Ideal Replacement: This fuel sending unit's professional performance making it an ideal replacement for the old and damaged parts, you can also take it for backup! Specification: Item Type: Fuel Sending Unit_x000D_ Body: 316 Stainless Steel_x000D_ Cable: PVC_x000D_ Float: NBR_x000D_ Installation Method: Standard SAE 5 hole type_x000D_ Screw Size: M5 x 0.8_x000D_ Aperture: Approx. 5 mm / 0.20in_x000D_ Product Specification: Approx. 7in / 180mm_x000D_ Recommended Water Tank Size: Approx. 190 to 203mm / 7.5 to 8in_x000D_ Output Signal: EU 0 to 190 ohms (0 ohms at no load, 190 ohms at full load)_x000D_ Resolution Range: Approx. 10mm / 0.39in_x000D_ Fuel and Water Level Sensor Type: Resistance_x000D_ Rated Current of Alarm Switch: 500mA_x000D_ Protection Grade: IP67_x000D_ Operating Temperature: - 40 to +185 (- 40 to +85)_x000D_ Applicable to: Ships, yachts, trucks, RV