---
product_id: 554277771
title: "QPKING Engine Oil Quality Tester AS503 Engine Oil Tester for Gasoline Diesel Vehicles with 2.8-inch Backlit Screen"
brand: "qpking"
price: "¥18817"
currency: JPY
in_stock: true
url: https://www.desertcart.jp/products/554277771-qpking-engine-oil-quality-tester-as503-engine-oil-tester-gasoline
store_origin: JP
region: Japan
---

# Gasoline & Diesel compatible 2.8-inch backlit HD display Integrated oil temperature sensor QPKING Engine Oil Quality Tester AS503 Engine Oil Tester for Gasoline Diesel Vehicles with 2.8-inch Backlit Screen

**Brand:** qpking
**Price:** ¥18817
**Availability:** ✅ In Stock

## Summary

> 🔧 Stay ahead of engine wear with precision oil insights!

## Quick Answers

- **What is this?** QPKING Engine Oil Quality Tester AS503 Engine Oil Tester for Gasoline Diesel Vehicles with 2.8-inch Backlit Screen by qpking
- **How much does it cost?** ¥18817 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/554277771-qpking-engine-oil-quality-tester-as503-engine-oil-tester-gasoline)

## Best For

- qpking enthusiasts

## Why This Product

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

## Key Features

- • **Clear Visibility Anytime:** Large 2.8-inch backlit LCD screen guarantees easy reading in any lighting condition.
- • **Precision Optical Sensor:** High-accuracy optoelectronic probe ensures reliable and consistent oil quality readings.
- • **Ergonomic & Durable Design:** Lightweight handheld body with silicone grip and flexible PTFE hose for effortless testing.
- • **Universal Oil Compatibility:** Works seamlessly with most gasoline and diesel engine oils for precise diagnostics.
- • **Real-Time Temperature Monitoring:** Integrated sensor displays oil temperature to assess engine health instantly.

## Overview

The QPKING AS503 Engine Oil Quality Tester is a professional-grade handheld device designed for accurate assessment of gasoline and diesel engine oils. Featuring a high-precision optical probe, integrated temperature sensor, and a bright 2.8-inch backlit display, it offers reliable diagnostics with ergonomic ease. Its durable PTFE hose and silicone grip ensure longevity and comfort, backed by a 3-year warranty and responsive support.

## Description

Full description not available

## Features

- 👍[COMPATIBLE WITH VARIOUS LUBRICANT OIL STANDARDS]: AS503 Engine Oil Quality Tester Suitable for the majority of gasoline and diesel engine lubricant oils availablein the market. Separate sampling and measurement for gasoline anddiesel engines allow for more precise assessment of lubricant oil health.
- 👍[OIL TEMPERATURE DISPLAY]: Integrated temperature sensor for convenient assessmentof the engine's operating status.
- 👍[HIGH-PRECISION OPTICAL PROBE]: Integrated with a high-precision optoelectronic sensorensuring more accurate measurement results.
- 👍[FLEXIBLE HOSE PROBEFOR CONVENIENT TESTING]: The 800mm long probe designoffers a more flexible & convenientway ofconducting tests.The hose is made of PTFE materialhighly resistant to oil & oxidationand boasts exceptional corrosionresistance, effectively extendingthe product's lifespan.
- 👍[USER-FRIENDLYHANDHELD DESIGN]: AS503 Engine Oil Quality Tester body's handheld portion is lined with silicone substrate.providing excellent grip & lightweight designfor easy single-handed operation.
- 👍[LARGE LCD WITH HIGH DEFINITION]:AS503 Engine Oil Tester Equipped with a backlit 2.8- inch LCD screen, providing users with a clear display for efficient operation even in varying lighting conditions, be it bright daylight or dim nighttime.
- 👍【Three Years Warranty and Lifelong Maintenance】For the damage caused by non-human factors, we promises to resend the parts for free within 3 years. For any demand, we warmly welcome you to contact us, and we will reply you as soon as possible within 24 hours.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Manufacturer | QPKING |
| Brand | QPKING |
| Package Dimensions | 25.5 x 14.2 x 5.89 cm; 372 g |
| Manufacturer reference | AS503 Motoröl-Qualitätsprüfgerät |
| Manufacturer Part Number | AS503 Motoröl-Qualitätsprüfgerät |
| Item Weight | 372 g |

## Images

![QPKING Engine Oil Quality Tester AS503 Engine Oil Tester for Gasoline Diesel Vehicles with 2.8-inch Backlit Screen - Image 1](https://m.media-amazon.com/images/I/61J2FHUeZsL.jpg)

## Frequently Bought Together

- Engine Oil Quality Tester AS503 Engine Oil Tester for Gasoline Diesel Vehicles With 2.8"Screen High-Precision Detection Probe,Transmittance&Oil Temp.Display,Compatible With Various Lubricant Standards
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**Shop now:** [https://www.desertcart.jp/products/554277771-qpking-engine-oil-quality-tester-as503-engine-oil-tester-gasoline](https://www.desertcart.jp/products/554277771-qpking-engine-oil-quality-tester-as503-engine-oil-tester-gasoline)

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*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-01-26*