Feature: 1. [IP67 Protection Level] The fuel level transmitter is IP67 rated with excellent water and dust resistance and long service life. 2. [Stainless Steel] The body of the tank sending unit is made of heavy duty 316 stainless steel, which is wear resistant and rust free for a long service life. 3. [Stable Performance] This water level sensor is a dry reed switch, durable and reliable, with a stable output signal and tank that does not require adjustment. 4. [Easy Installation] The fuel level sending unit comes with gaskets, mounting screws, written and illustrated instructions and takes approximately 15 minutes total to install. 5. [Wide Application] Fuel level sensors for boats, cars, trucks, buses and marine applications, for oil level gauges, water level gauges and any unadulterated liquid. Specification: Item Type: Marine Fuel Sending Unit Body Material: Stainless steel Cable: PVC Float: NBR Mounting Method: Standard SAE 5 hole type Screw Size: M5 x 0.8 Hole Diameter: Approx. 5mm / 0.2in Product Specifications: 11in (280mm) Recommended Tank Size: 11.4in-12in (290-305mm) Output Signal: European Standard 0-190 ohms (0 ohms at no load, 190 ohms at full load) Resolution Range: Approx. 21mm / 0.83in Fuel and Water Level Sensor Type: Resistance Alarm Switch Rated Current: 500mA Protection Grade: IP67 Operating Temperature: -40℉-185℉ (-40℃-85℃) Application: Ship, Yacht, Truck, RV. Package List: 1 x Marine Fuel Sending Unit5 x Screw1 x Washer