What is a aviation fuel tester for

A Fuel tester is used to drain fuel at the lowest point in an aircraft fuel tank. The fuel drains into the clear part of the tester and you can see if there is any water and/or sediment (dirt) in the fuel. This is part of a pilot's pre-flight checks.

Aviation Fuel Tester with built-in cowl screwdriver, Model 391S, Clear and Yellow

Product ID: 534995145

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Details

Brand
SmartSF
Colour
Yellow
Item dimensions L x W x H
14 x 17 x 25
Power source
Battery
Style
Compact

⛽Precision alcohol % markings

📏Compact 14x17x25 cm size

🔧Built-in cowl screwdriver

Description

⛽ Test smarter, not harder — your cockpit’s new best friend!

RELIABLE POWER - Battery-powered for consistent performance anytime, anywhere
TRUSTED STANDARD - Industry staple with clear, accurate alcohol percentage markings
ALL IN ONE UTILITY - Integrated cowl screwdriver for on-the-spot adjustments
COMPACT PORTABLE - Lightweight and space-saving for easy carry and storage
FUEL TESTING SIMPLIFIED - No-hole probe design for quick, mess-free readings

The Aviation Fuel Tester Model 391S by SmartSF is a compact, battery-powered tool featuring a no-hole probe and clear alcohol percentage markings for precise fuel quality checks. Its built-in cowl screwdriver adds practical utility, making it an essential, space-saving device trusted by professionals for reliable, on-the-go fuel testing.

Specifications

ASIN	B0016BQEGQ
Best Sellers Rank	316,331 in Automotive ( See Top 100 in Automotive ) 1,563 in Fuel System Tools
Brand	SmartSF
Colour	Yellow
Customer Reviews	4.0 4.0 out of 5 stars (2)
Item Dimensions	14 x 17 x 25 centimetres
Manufacturer	Daansen USA, Inc.
Measurement Type	Voltmeter
Minimum Operating Voltage	3 Volts
Model Number	391S
Power Source	Battery Powered
Style Name	Compact

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