--- product_id: 342399745 title: "(10mm Resolution) Fuel Sending Unit Marine for Boat RV Truck Vehicle Fuel Gas Sender Fuel Tank Sending Unit Fuel Water Level Sensor Fuel Level Sending Unit Boat Fuel Gauge Sending Unit 240-33 ohms 5\"" brand: "100tech" price: "375.24 DT" currency: TND in_stock: true reviews_count: 5 category: "100 Tech" url: https://www.desertcart.tn/products/342399745-10mm-resolution-fuel-sending-unit-marine-for-boat-rv-truck store_origin: TN region: Tunisia --- # Precision 240-33 ohms Output Easy SAE 5-Hole Mount Installation 316 Stainless Steel Durability (10mm Resolution) Fuel Sending Unit Marine for Boat RV Truck Vehicle Fuel Gas Sender Fuel Tank Sending Unit Fuel Water Level Sensor Fuel Level Sending Unit Boat Fuel Gauge Sending Unit 240-33 ohms 5" **Brand:** 100tech **Price:** 375.24 DT **Availability:** ✅ In Stock ## Summary > ⛽ Elevate your fuel gauge game with precision and rugged reliability! ## Quick Answers - **What is this?** (10mm Resolution) Fuel Sending Unit Marine for Boat RV Truck Vehicle Fuel Gas Sender Fuel Tank Sending Unit Fuel Water Level Sensor Fuel Level Sending Unit Boat Fuel Gauge Sending Unit 240-33 ohms 5" by 100tech - **How much does it cost?** 375.24 DT with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.tn](https://www.desertcart.tn/products/342399745-10mm-resolution-fuel-sending-unit-marine-for-boat-rv-truck) ## Best For - 100tech enthusiasts ## Why This Product - Trusted 100tech brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Unmatched Durability:** 316-grade stainless steel body resists corrosion in marine and industrial environments. - • **Versatile Application:** Perfect for boats, RVs, trucks, and generators—engineered to perform across diverse fuel systems. - • **Effortless Installation:** Standard SAE 5-hole flange mount with included gasket and screws for a seamless upgrade. - • **Precision Fuel Monitoring:** Accurate 240-33 ohms resistance output ensures real-time, reliable fuel and water level readings. - • **Minimal Mechanical Failure:** Reed switch technology with only one moving float part reduces breakdown risk and maintenance. ## Overview The 100TECH Fuel Sending Unit is a high-precision, corrosion-resistant sensor crafted from 316 stainless steel, featuring a durable Japanese OKI reed switch for reliable fuel and water level measurement. Designed for easy installation with a standard SAE 5-hole flange, it outputs a precise 240-33 ohm signal compatible with most gauges. Ideal for marine, automotive, and industrial use, it minimizes mechanical failures with a single moving float and comes backed by a 1-year warranty and lifetime support. ## Description 100TECH Stainless Steel Fule tank Sending Unit is Made With OKI Reed Switch(Imported from Japan). It's Easy to Install. A Perfect Match with All the Screw Holes Lining up the Unit Comes with 5pcs of Screws and 1pc of New Neoprene Gasket. It is the Direct Replacement for Arm Type Sensors or Original Wema Unit for Better Durability and Reliability. The Substantial Flange can Seal the Tank Completely The 100TECH Marine Fule Sending Units are Widely Used in Marine, On-road, Off-road, Generator set, and Industrial Applications. The Electric Liquid Level Sending Unit Utilizes Reed Switch and Magnetic Field technology. In 100TECH Reed Switch Level Senders the Float is the Only Moving Part of the Sender, Thereby Minimizing Potential Mechanical Failures. Material:Body: SUS 316 Stainless Steel. Cable: PVC. Float: NBR. Mounting Methods: Standard SAE 5 hole pattern. Protection Rank: IP65. Output Signal: American Standard 240-33 ohms (240 ohms at empty , 33 ohms at full). Resolution Range: 10mm: 4”,5”,6”,7” 21mm: 8”,8.5”,9”,9.5”,10”,10.5”,11”,11.5”,12”,12.5”,13”,13.5”,14”,15”,16”,17”,18”,19”,20”,21”,22”,23”24”,25”,26”,27”,28”,29”,30”,31”32” Operational Temperature: -40°F ~ +85°F (-40°C ~ +85°C). Package Information: 1 x 100TECH 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 (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) Before Placing the Order. Review: Works great on sailboat water tank - Why did you pick this product vs others?: I bought two different sensors and tested them in a tall container of water. The response of this one was much better, so I installed it in the 100 gallon water tank of my sailboat because the old one gave incorrect information (it showed a quarter of a tank when it was empty). This one seems to be working well and I have a lot more confidence in the meter reading. Review: Missing Information on Web Site - Description on web site did not include restriction to mount with 1 inch clearance to tank bottom. Literature included with part included the restriction, causing me to return item for one with correct length. Otherwise, the part seems to work as expected. ## Features - 100TECH Stainless Steel Fule Tank Sending Unit is Made With OKI Reed Switch(Imported from Japan). It is the Direct Replacement for Arm Type sender. The Advantage of This Fuel Level Sender Over Thick-Film Swim Arm Type Level Sender is the Reed Switch's Durability and Reliability. - Additionally, No Moving Parts to Break. No Adjustment Needed for Tank. - The Fule/Water Level Sensor with American standard output 240-33 ohms (240 ohms at empty, 33 ohms at full). If you Need Lengths Other than 4"-32", Please Contact us Directly for More Information. - [Easy to Install] The Fuel Level Sending Unit Comes with Gasket,Mounting Screws,Well-Written and Illustrated instructions; The Wiring Instructions are Straight Forward and Easy to follow. - SAE 5 hole Mounting Pattern, Heavy Duty 316 Stainless Steel and Rugged Construction. Wide Application: It Could Support Fuel Level Gauge and Water Level Gauge for Boat/Auto. - 100Tech Guarantees with 1 Year Limited Warranty & Free Lifetime Technical Support - Attention: To Allow the Fule Sender not Hit the Bottom of the Tank, Please Measure from the Top of Your Tank to the Bottom on the Outside and Subtract 1 Inch the Length of Sender. - [The Size of Float] The Diameter of Float is 1.38"(35mm). If You Have to Drill the hole, Diameter 1.50"(38mm) Hole Would be Perfect. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B092MXD2JT | | Best Sellers Rank | #146,614 in Automotive ( See Top 100 in Automotive ) #40 in Automotive Fuel Sending Switches | | Brand | 100Tech | | Brand Name | 100Tech | | Current Rating | 33 Amps | | Current rating | 33 Amps | | Customer Reviews | 4.7 out of 5 stars 74 Reviews | | Manufacturer | 100TECH | | Material | Stainless Steel | | Material Type | Stainless Steel | | Model | BY130-240 | | Mounting Type | Flange Mount | | Mounting type | Flange Mount | | Output Type | resistance | | Output type | resistance | | Part Number | BY130-240 | | Sensing Distance | 130 Millimeters | | Smart Home Compatibility | Not Smart Home Compatible | | Specific Uses For Product | automotive, marine, industrial | | Style | 240-33 ohms Sender | | Style Name | 240-33 ohms Sender | | UPC | 757842002272 | | Unit Count | 1 Count | | Upper Temperature Rating | 85 Degrees Fahrenheit | ## Product Details - **Brand:** 100Tech - **Current rating:** 33 Amps - **Material:** Stainless Steel, nbr - **Mounting type:** Flange Mount - **Style:** 240-33 ohms Sender ## Images ![(10mm Resolution) Fuel Sending Unit Marine for Boat RV Truck Vehicle Fuel Gas Sender Fuel Tank Sending Unit Fuel Water Level Sensor Fuel Level Sending Unit Boat Fuel Gauge Sending Unit 240-33 ohms 5" - Image 1](https://m.media-amazon.com/images/I/51vZF89ZMQS.jpg) ![(10mm Resolution) Fuel Sending Unit Marine for Boat RV Truck Vehicle Fuel Gas Sender Fuel Tank Sending Unit Fuel Water Level Sensor Fuel Level Sending Unit Boat Fuel Gauge Sending Unit 240-33 ohms 5" - Image 2](https://m.media-amazon.com/images/I/41Rux-7xM+L.jpg) ![(10mm Resolution) Fuel Sending Unit Marine for Boat RV Truck Vehicle Fuel Gas Sender Fuel Tank Sending Unit Fuel Water Level Sensor Fuel Level Sending Unit Boat Fuel Gauge Sending Unit 240-33 ohms 5" - Image 3](https://m.media-amazon.com/images/I/61Z33Mz9xAL.jpg) ![(10mm Resolution) Fuel Sending Unit Marine for Boat RV Truck Vehicle Fuel Gas Sender Fuel Tank Sending Unit Fuel Water Level Sensor Fuel Level Sending Unit Boat Fuel Gauge Sending Unit 240-33 ohms 5" - Image 4](https://m.media-amazon.com/images/I/71yeVp18HCL.jpg) ![(10mm Resolution) Fuel Sending Unit Marine for Boat RV Truck Vehicle Fuel Gas Sender Fuel Tank Sending Unit Fuel Water Level Sensor Fuel Level Sending Unit Boat Fuel Gauge Sending Unit 240-33 ohms 5" - Image 5](https://m.media-amazon.com/images/I/61NM0GLX1AL.jpg) ## Available Options This product comes in different **Size, Style** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Works great on sailboat water tank *by J***R on 11 July 2025* Why did you pick this product vs others?: I bought two different sensors and tested them in a tall container of water. The response of this one was much better, so I installed it in the 100 gallon water tank of my sailboat because the old one gave incorrect information (it showed a quarter of a tank when it was empty). This one seems to be working well and I have a lot more confidence in the meter reading. ### ⭐⭐⭐ Missing Information on Web Site *by D***. on 6 November 2025* Description on web site did not include restriction to mount with 1 inch clearance to tank bottom. Literature included with part included the restriction, causing me to return item for one with correct length. Otherwise, the part seems to work as expected. ### ⭐⭐⭐⭐⭐ Accurate readings *by B***S on 3 July 2024* I purchased one that was a little less money. To me they looked the same. Don't know if I just happened to buy a bad one. But this one I'm happy with. When I ohmed it out the marks were about a inch apart all the way down the rod. As I was filling my tank after installing it using a dip stick it was right on the money with my gauge. It will show in 1/8 measurements. As you are moving the needle will bounce around a bit due to fuel moving in the tank. ## Frequently Bought Together - Fuel Sending Unit 240-33 ohms 5"(130mm) Marine for Boat RV Truck Vehicle Fuel Gas Sender Fuel Tank Sending Unit Fuel Water Level Sensor Fuel Level Sending Unit Boat Fuel Gauge Sending Unit - Ancor Marine Grade Products 131110 Triplex Cable, 10/3 AWG (3 x 5mm2), Flat - 100ft --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.tn/products/342399745-10mm-resolution-fuel-sending-unit-marine-for-boat-rv-truck](https://www.desertcart.tn/products/342399745-10mm-resolution-fuel-sending-unit-marine-for-boat-rv-truck) --- *Product available on Desertcart Tunisia* *Store origin: TN* *Last updated: 2026-09-05*