How many increments will the gauge read for a 6" sending unit? Every 1/8 tank (9 positions)? Or only 5?

It is kind of more of a fluid movement of the gauge because of the Rio stat so it will register appropriately as the fuel goes down. It does not just move one quarter to 1/4

Gauge goes to full then back to empty in just a few seconds

Couple things 1. Check your ground for bad connection 2. Check power positive side also Check connection to battery

Can the sensor be mounted to the bottom of a fuel tank and then reverse the ground and sensor wire?

I dought reversing the ground at the sending unit will reverse things. But it might? The gauge is calibratable. There are instruction that will explain how to calibrate gauge. You could wire up the gauge and sending unit on your bench and test everything before installing it in the tank.

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Rupse Fuel Sender Unit Boat Fuel Tank Sending Unit Fuel Water Level Sensor Stainless Steel Fuel Sender and Fuel Gauge for Boat Car Truck RV (6" (150mm))

Product ID: 396719865

Details

Brand
RUPSE
Fit Type
Universal Fit
Item dimensions L x W x H
13 x 2 x 2
Material
Stainless
Vehicle Service Type
Truck

💡8 adjustable backlight colors

⚙️6" (150mm) precision size

🛡️Stainless steel corrosion-resistant body

11515 kr

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Description

⛽ Stay ahead of the gauge—never run dry or guess again!

FUEL VERSATILITY - Compatible with gasoline, diesel, methanol, and water, making it the all-in-one sensor for diverse fuel needs.
EFFORTLESS INSTALLATION - SAE 5-hole mounting pattern with M5 screws and quick wiring terminals makes setup fast and foolproof.
UNIVERSAL COMPATIBILITY - Designed to fit boats, trucks, RVs, agricultural and industrial vehicles with multiple size options for any fuel tank.
PRECISION MEETS DURABILITY - Stainless steel exterior with high-quality reed switches ensures long-lasting, accurate fuel and water level readings.
READABILITY IN ANY CONDITION - 8 customizable backlight colors combined with anti-fog curved glass and IP67 waterproof rating for crystal-clear visibility day or night.

The Rupse Fuel Sender Unit is a high-precision, stainless steel fuel and water level sensor designed for universal fit across boats, trucks, RVs, and more. Featuring corrosion resistance, 8 backlight color options, IP67 waterproofing, and easy installation, it delivers reliable, accurate readings for gasoline, diesel, methanol, and water tanks. Engineered for durability and versatility, it’s the smart upgrade for professionals who demand precision and peace of mind on the road or water.

Specifications

ASIN	B09NNSJGRH
Auto Part Position	Outside
Automotive Fit Type	Universal Fit
Best Sellers Rank	#11,019 in Automotive ( See Top 100 in Automotive ) #2 in Automotive Fuel Gauges
Body Material	Stainless Steel
Brand Name	RUPSE
Compatible with Vehicle Type	Truck
Connector Type	screws
Customer Reviews	4.3 4.3 out of 5 stars (144)
Fit Type	Universal Fit
Gas Type	diesel,gasoline,methanol
Hose Length	13 inches
Included Components	Fuel Sending Unit
Inlet Connection Size	13 inches
Inlet Connection Type	Threaded
Item Dimensions	13 x 2 x 2 inches
Item Type Name	Fuel Sender Unit
Item Weight	0.38 kg
Manufacturer	Rupse
Manufacturer Part Number	CE30GAU001
Manufacturer Warranty Description	1year
Material Type	Stainless Steel
Model Number	03CE30GMAU001
Mounting Type	Flange Mount
Number of Items	1
OEM Equivalent Part Number	CE30GAU001
Operation Mode	Automatic
Outlet Connection Size	6 inches
Outlet Connection Type	Threaded
Product Grade	Performance Part
Product Style	Modern
Specification Met	SAE
UPC	192032001428
Unit Count	1 Count

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11515 kr

Duties & taxes included

In stock

Sold byAmazon IcelandDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Iceland.

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