Autel Autolink AL539B Code Reader

$93.00

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TopToolOnline started with a simple idea: car professionals and enthusiasts deserve better than guesswork when choosing diagnostic tools.

We were tired of overpriced listings, outdated stock, and vague product details—so we built our own store, one that puts accuracy, service, and honesty first.

Today, we’re proud to be official partners of Autel, Launch, and TOPDON, offering only brand-new, factory-direct tools with the most up-to-date software. Whether you're a garage owner, a mobile mechanic, or a passionate DIYer, we take the time to personally check tool functions by VIN before you buy.

We speak your language—literally. Our support team covers 12+ languages including English, French, Spanish, Italian, German, Portuguese, Japanese, Arabic, Hebrew, Dutch, Polish and more. And if you ever have a question? We’re right here with direct tech support channels to the brands themselves.

We don’t rely on flashy platforms or middlemen. No inflated Amazon fees. No second-hand stock. Just honest pricing, fast shipping, and real expertise.

Over the years, our customers have said things like:

“It’s been a very long time since I’ve received such comprehensive customer service. Jaz and the team were incredibly helpful from start to finish. You should be commended for that.”
“They checked compatibility using my VIN and pointed me to exactly the right scanner. No guesswork, just results.”
“This is the smoothest scanner-buying experience I’ve ever had. Fast replies, honest answers, and a real sense of support.”

Almost no one ever returns a tool—but if they do, we make it right without hesitation.

We’re not just selling scanners. We’re helping pros like you do your job better, faster, and with confidence.

That’s the TopTool promise.

WHERE DO OUR PRODUCTS SHIP FROM?

Thank you for visiting TopToolOnline!

We offer free shipping to most countries, but some remote areas or countries may require an additional shipping fee based on the package weight and delivery distance. Any applicable shipping charges will be clearly displayed at checkout before you complete your purchase.

Our products are shipped from multiple warehouses located around the world. We aim to ship from the warehouse closest to your delivery address to ensure fast delivery.

Note: If a product is out of stock in your nearest warehouse, your order will be shipped directly from our manufacturer in Shenzhen, China to avoid delays.

Listed below is the location of our warehouse and the estimated completion date.

Destination	Warehouse located	Estimated delivery time
North America	CA, US/NJ, US	3-5 Days
Europe	Germany	5-7 Days
UK	Leicestershire, UK	5-7 Days
Australia	Sydney, AU	5-7 Days
Other Countries	Hong Kong / Shenzhen, China	7-15 Days

Note: Delivery times may vary depending on your location and customs clearance procedures.

FAST SHIPPING

Orders are typically processed and shipped within 1-3 business days. Once your order is shipped, we will email you a tracking number so you can monitor your shipment in real time.

HASSEL-FREE RETURNS

Toptool provides 100% customer satisfaction on all of the products we sell. If you are not fully satisfied with a product you purchased directly from Toptool, We will accept a return within 30 days after the date on which delivery of the product is made to you. For more detailed information, please refer to our retrun and refund policy.

SHIPPING COVERAGE

We provide worldwide shipping to most countries and regions. However, please note that some remote or restricted areas are not eligible for delivery, or may require an additional shipping fee.

We currently ship to the following regions:

United States
Canada
Europe (including Germany, France, Italy, Spain, the Netherlands, etc.)
United Kingdom
Australia
Most countries in Asia
Selected countries in South America, Africa, and the Middle East

Restricted or unsupported regions: We do not ship to certain remote or embargoed regions. If your address is in a restricted area, we will notify you after your order is placed or you may see an error at checkout.

If you're unsure whether we ship to your location, please contact our support team (support@toptoolonline.com) before placing your order.

Fast . Smart . Innovative . Powerful

A simple solution for complex problems

Authorized seller of Autel and Launch, two leading manufacturers of professional automotive diagnostic tools and accessories.

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Autel AL539B Battery Tester

The Autel AutoLink AL539B is a versatile and easy-to-use battery tester, a multimeter, and an OBDII scanner that is ideal for DIYers as well as more experienced technicians. It provides fast, accurate diagnosis with full OBD2 functionality, patented One-Click I/M Readiness Key, circuit test, battery test, and starting and charging system.

It features a built-in multimeter that measures voltage, current, resistance, continuity, and diode resistance. Using the AC voltage mode, you can also view the maximum and minimum voltages, frequency, and duty cycle.

Technical Specs:

Battery Health Test:

Provides a complete battery analysis which shows the voltage, good and bad, as well as the release power of the battery;
It has a dual battery rated system that is capable of detecting batteries of different standards;
Accurately assess the health status of the battery, display the battery voltage and current.

Type: Regular, AGM, AGM/Spiral, Gel; Rating: CCA, CA, MCA, JIS, DIN, SAE, IEC, EN).

Starting test & charging systems test:

Diagnoses the state of 12V charging systems, starting systems, and discharged batteries;
To help predict if the battery will fail to start a vehicle;
Ensure that the charging current and the output voltage are normal.

Circuit Test

Works as an easy-to-use multimeter(AVOmeter)
AC/DC voltage test,
Continuity test,
Resistance test,
Current test,
Diode resistance.

Full OBDII diagnostics, all 10 modes:

Read Codes: Read Pending Codes, Stored Codes and Permanent Codes.
Erase Codes: Erase codes from the on-board computer, “Freeze-Frame” data and manufacturer-specific enhanced data.
Live Data: View live or real-time data of the vehicle's computer module.
View Freeze Frame Data: displays the vehicle's operating parameters when a DTC is detected.
Retrieve I/M Readiness Status: In order to monitor the operation of the emissions system on OBDII compliant vehicles.
O2 Monitor Test: Detect problems related to vehicle fuel efficiency and emissions.
On-Board Monitor Test: Retrieves and displays test results for emission-related powertrain components and systems for vehicles equipped with CAN.
Component Test: Performs a leak test on the vehicle's EVAP system.
View Vehicle Information: Retrieves vehicle identification information (VIN, CINs, CVNs).

Other Great Features of Autel AL539B:

The data printing feature allows the user to view and print any data from the last system test.
DTC lookup for easily retrieving detailed vehicle code information, data playback and printing.
Compatible with most 1996 and newer American, Asian, and European OBDII/CAN compliant vehicles, (such as Toyota, Honda, Chevrolet, Ford, Benz, Jeep, BMW, Nissan, VW, Audi, GMCs, etc.)
Supports all OBDII protocols: KWP2000, ISO9141, J1850 VPW, J1850 PWM and CAN.
Turns off the check engine light(MIL) and clears the codes and resets the monitors,
A patented One-Click Readiness Key provides a quick check for State Emissions and drive cycle verification.
Free online updates for software and DTC library.
Multilingual menu and DTC definitions (English, Spanish, and French)

Specifications:

Display	TFT color display (320 x 240 dpi)
Operating Temperature	0 to 60°C (32 to 140 F°)
Storage Temperature	-20 to 70°C (-4 to 158 F°)
Length\Width\Height	175 mm (6.91”)\96.6 mm (3.80”)\37 mm (1.46”)
Weight	0.3kg (0.8lb, without wire) or 0.68kg (1.82lb, with wire)

What's in the box？
1pc x AL539B Main unit
1pc x Probes
1pc x Battery Test Cable （Not included in the AL539 package list, specifically for AL539B）
1pc x OBDII Cable
1pc x USB Cable
1pc x User's Manual
1pc x CD
1pc x Carry Case
1pc x 3.7V Li-ion Battery

FAQs

Starting a car with the IM608 ii pro diagnostic tool is a straightforward process.

First, establish a connection between the IM608 and the vehicle's OBD-II port. Power on the IM608 and select the vehicle's make and model from the menu.

Then, access the key programming function and carefully follow the on-screen instructions provided by the tool. This typically involves inserting a new key into the ignition and following specific prompts.

Once the programming is complete, test the newly programmed key to ensure it starts the vehicle smoothly.

IM608 II Pro is equipped with XP400 Pro key programmer and MaxiFlash ECU programmer to provide complete coverage of IMMO and programming functions.

This feature allows users to update or reprogram the software within the vehicle's ECU to address issues such as performance tuning, software updates, or fixing software-related problems.

However, it's important to note that the specific capabilities and compatibility for ECU programming may vary depending on the vehicle make, model, and year.

Please sent the VIN number to support@toptoolonline.com if you wish to check the compatibility of a specific vehicle.

Yes, the Autel IM608 diagnostic tool is compatible with Mercedes-Benz vehicles. It offers comprehensive diagnostic capabilities and supports key programming, as well as various service functions, for a wide range of Mercedes-Benz models.

the Autel IM608 also supports ECU (Engine Control Unit) programming for Mercedes-Benz vehicles, allowing users to update or reprogram the software within the vehicle's ECU.

However, specific capabilities and compatibility for ECU programming may vary depending on the Mercedes-Benz model and year.

Please sent the VIN number to support@toptoolonline.com if you wish to check the compatibility of a specific vehicle.

The IM608 II Pro boasts enhanced firmware, operating on the Android 10 platform, accompanied by expanded RAM and ROM capacities. Additionally, it incorporates the latest JVCI+ VCI, enabling seamless support for CAN protocol read and write operations without requiring a password.

Moreover, it comes equipped with built-in DoIP and CAN FD protocol functionalities, eliminating the need for a converter. Notably, it features a remote expert function, excluding North America, facilitating remote assistance and troubleshooting capabilities.

The IM608 II Pro has more advanced features than the IM608 Pro. It supports Mercedes-Benz infrared key read/write, which the IM608 Pro does not support.