---
product_id: 34589643
title: "Aviation Fuel Tester with Built-in Cowl Screwdriver, Model 391S, Clear and Yellow"
brand: "vosaplk"
price: "€ 1.36"
currency: EUR
in_stock: false
reviews_count: 9
url: https://www.desertcart.gr/products/34589643-aviation-fuel-tester-with-built-in-cowl-screwdriver-model-391s
store_origin: GR
region: Greece
---

# Aviation Fuel Tester with Built-in Cowl Screwdriver, Model 391S, Clear and Yellow

**Brand:** vosaplk
**Price:** € 1.36
**Availability:** ❌ Out of Stock

## Quick Answers

- **What is this?** Aviation Fuel Tester with Built-in Cowl Screwdriver, Model 391S, Clear and Yellow by vosaplk
- **How much does it cost?** € 1.36 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.gr](https://www.desertcart.gr/products/34589643-aviation-fuel-tester-with-built-in-cowl-screwdriver-model-391s)

## Best For

- vosaplk enthusiasts

## Why This Product

- Trusted vosaplk brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Description

With its compact size, no-hassle probe, and % alcohol markings, this fuel tester has been a standard for years. Sold Individually, 5 per Retail Display Box

Review: Affordable and Great quality - Very handy and helpful
Review: Compact, Reliable, and Pilot-Friendly - The Aviation Fuel Tester with Built-in Cowl Screwdriver is a super handy tool for quick pre-flight checks. The clear tube makes it easy to spot water or debris in the fuel, and the built-in screwdriver is perfect for opening cowls or fuel caps without carrying extra tools. It’s lightweight, simple to use, and fits easily in any flight bag. A great, affordable must-have for any pilot doing regular pre-flight inspections.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0016BQEGQ |
| Best Sellers Rank | #164,102 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #653 in Screwdrivers |
| Brand | Vosaplk |
| Brand Name | Vosaplk |
| Color | yellow |
| Customer Reviews | 4.7 out of 5 stars 405 Reviews |
| Item Dimensions | 5.51 x 6.69 x 9.84 inches |
| Item dimensions L x W x H | 5.51 x 6.69 x 9.84 inches |
| Manufacturer | Daansen USA, Inc. |
| Measurement Type | Alcohol Content Meter |
| Min. Operating Voltage | 3 volts |
| Minimum Operating Voltage | 3 volts |
| Model | 391S |
| Number of Items | 1 |
| Number of Packs | 1 |
| Part Number | MDAN001 |
| Power Source | Battery Powered |
| Style | Compact |
| Style Name | Compact |
| Unit Count | 1 Count |

## Product Details

- **Brand:** Vosaplk
- **Color:** yellow
- **Item dimensions L x W x H:** 5.51 x 6.69 x 9.84 inches
- **Power Source:** Battery Powered
- **Style:** Compact

## Images

![Aviation Fuel Tester with Built-in Cowl Screwdriver, Model 391S, Clear and Yellow - Image 1](https://m.media-amazon.com/images/I/3151bCRVqvL.jpg)

## Questions & Answers

**Q: What is a aviation fuel tester for**
A: 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.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Affordable and Great quality
*by J***. on July 17, 2026*

Very handy and helpful

### ⭐⭐⭐⭐⭐ Compact, Reliable, and Pilot-Friendly
*by R***L on December 10, 2025*

The Aviation Fuel Tester with Built-in Cowl Screwdriver is a super handy tool for quick pre-flight checks. The clear tube makes it easy to spot water or debris in the fuel, and the built-in screwdriver is perfect for opening cowls or fuel caps without carrying extra tools. It’s lightweight, simple to use, and fits easily in any flight bag. A great, affordable must-have for any pilot doing regular pre-flight inspections.

### ⭐⭐⭐⭐⭐ Great product
*by A***5 on May 10, 2026*

Perfect. Does exactly what it's suppose to do. Recommended.

## Frequently Bought Together

- Aviation Fuel Tester with Built-in Cowl Screwdriver, Model 391S, Clear and Yellow
- Luso Aviation Fuelhawk Aircraft Fuel Gauge, Cessna 172-26.5 Gallon
- FAR/AIM 2025: Federal Aviation Regulations/Aeronautical Information Manual (ASA FAR/AIM Series)

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**Shop now:** [https://www.desertcart.gr/products/34589643-aviation-fuel-tester-with-built-in-cowl-screwdriver-model-391s](https://www.desertcart.gr/products/34589643-aviation-fuel-tester-with-built-in-cowl-screwdriver-model-391s)

---

*Product available on Desertcart Greece*
*Store origin: GR*
*Last updated: 2026-09-05*