AODITECK Fuel/water sending unit is the direct replacement for the swingarm sender for better durability and reliability. There are so many versions of Sending Units on Amazon, What?s Features and Benefits of AODITECK Sending Unit ? ?The Body of AODITECK Sender Unit is built with SUS 316 Stainless Steel . Some companies offer the one made with 304 or even they never tell which type of stainless steel they used. ? ?Easy to follow wiring schematic ?: AODITECK Sender: The well-written and illustrated instructions of AODITECK Senders are straight forward and easy to follow. Others : The Installation Instruction of some companies was not written by someone who speaks English as their primary language. They use the half Chinese and half English direction. ??Stanard 90 degrees sweep and upgrade 270 degree sweep gauge ?You can purchase an AODITECK fuel level gauge in conjunction with an AODITECK sending unit If your boat/camper didn?t have a fuel gauge. Besides, There are several series gauge models at option. Liquid Level Sender with American standard output (240 ohms at empty, 33 ohms at full). Material:Body: SUS 316 Stainless Steel. Cable: PVC. Float: NBR. Mounting Methods: Standard SAE 5 hole pattern. Protection Rank: IP67. Output Signal:. American Standard 240-33 ohms (240 ohms at empty , 33 ohms at full). Resolution Range: 10mm: 4?,5?5.5?,6?,6.5?7?,7.5? 21mm: 8?,9?,10?,11?,12?,13?14?15?,16?17?,18?,19? ,21?,24? Operational Temperature: -40F ~ +85F (-40C ~ +85C). Package Information: 1 x AODITECK Fuel Sending Unit 1 x Gasket 5 x M5*0.8 Length(16mm) Screws 1x Sending Unit Installation Guide Note: Please kindly pay Attention to the Product Description, Especially the Resolution and Length Before Placing the Order. bGreat replacement fuel senderbThe advantage of This doughnut float design type level sender over thickfilm swim arm type level Sender is bthe reed switchs durability and reliability. bbr Additionally, no moving parts to break. No adjustment needed for tank. It could support fuel level gauge and water Tank Gauge for BoatRVTruck.br bAODITECK Fuel Gauge b You can purchase b an AODITECK fuel level gauge in conjunction with an AODITECK sending unit b If your boatcamper didnt have a fuel gauge, Both Will Work Great Together. br b There are several series gauge models at option.b br bMore Reliable and Quality ConstructionbAll the AODITECK Fuel Sending Units are made With series of bHighquality reed switches and fixed resistors.b SAE 5 hole mounting pattern, heavy duty SUS 316 stainless steel and rugged construction. Signal Output 240 ohms33 ohms.br bEasy to Install, Easy Hookup b The AODITECK Fuel Level sending unit comes with gasket,mounting screws,wellwritten and illustrated instructions; The wiring instructions are straight forward and easy to follow. Takes about 15 minutes to install total, getting your fuel gauge working again.br bNoteb to allow the sender not hit the bottom of the tank, the length of sender should be 1 less than the depth of the tank if tank is plastic, and 0.5 less than the depth of the tank if tank is metal . brThe Diameter of Float is 1.3835mm. If You Have to Drill the hole, Diameter 11238mm Hole Would be Perfect.brAODITECK Sender is with NonLinear Output, It can only match with standard gauge with NonLinear signal. br