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AUTOOL AS509 Coolant Boiling Point Tester

AUTOOL AS509 Coolant Boiling Point Tester

US$79.00

Key Features

Boiling Point Decision
23-Brand Coolant Mode
Safe Clear Display

Ship From

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☰ REQUEST BULK / B2B QUOTE

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AUTOOL AS509

Product Overview

The AUTOOL AS509 Automotive Coolant Boiling Point Tester is a handheld vehicle diagnostic device that determines whether coolant replacement is needed by measuring the coolant boiling point. It supports Normal Mode for general testing and Brand Mode for reference-based testing across 23 popular coolant brands, helping technicians quickly compare measured boiling point results with built-in manufacturer reference values.

Coolant Boiling Point Normal / Brand Mode 23 Coolant Brands 12V Power

±3%Accuracy

20-40sTesting Time

10-14VOperating Voltage

3 YearsWarranty

AUTOOL AS509 coolant boiling point tester overview and feature image

AUTOOL AS509 three year warranty and lifetime maintenance image

Key Features

AS509 combines a high-sensitivity sensor, dual test modes, 23 coolant brand data, OLED display, built-in reference values, and dual safety protection to help users judge coolant condition more confidently.

High-Sensitivity Sensor

With temperature measurement accuracy of ±3%, AS509 can accurately test coolant boiling point and assess temperature changes during coolant condition checks.

Click to enlarge

Dual Mode Selection

Normal Mode supports daily general tests across vehicle models and coolant types. Brand Mode uses built-in brand data to perform reference-based testing for more accurate judgment.

Supports 23 Coolant Brands

Brand Mode covers ACDELCO, BASF, BOSCH, CASTROL, ENGINE_ICE, EVANS, FORD, HONDA, JOHN_DEERE, KUNLUN, MOBIL, MOPAR, NISSAN, OMTECH, PEAK, PRESTONE, RECOCHEM, SHELL, SKI-DOO, ZEREX, STAR_BRITE, TOTAL, and TOYOTA.

AUTOOL AS509 built-in boiling point reference values

Built-In Reference Values

No need to manually check standard values. Compare the measured boiling point with the built-in manufacturer reference values to quickly judge whether the coolant has deteriorated.

1.6-Inch HD OLED Display

The self-illuminating OLED screen makes test results clear and intuitive, helping users read the result in bright light, dim workshops, or night-time conditions.

AUTOOL AS509 reverse polarity and overheat protection

Dual Safety Protection

Built-in reverse polarity protection and overheat protection help reduce operational errors, connection mistakes, and overheating risks during testing.

How To Use

AS509 uses a coolant sample, 12V battery power, test rod immersion, and one-button test operation to measure the coolant boiling point in approximately 20-40 seconds.

Draw Coolant Sample

Use the sampler to draw 50ml of coolant from the vehicle reservoir, then inject the sample into the beaker.

Connect 12V Power

Connect the AS509 to a 12V battery, turn on the tester, and select the coolant type or Brand Mode according to your test target.

Insert Test Rod

Place the test rod into the beaker and make sure the sampling hole is fully submerged in the coolant sample.

Start Test

Hold the “S” button, wait for the progress bar to complete, then read the boiling point result on the OLED display.

Use Notes

Use a 50ml coolant sample for testing.
Connect the tester to a 12V battery power source before operation.
Make sure the test rod sampling hole is fully submerged in the coolant sample.
Use Normal Mode for general testing and Brand Mode when testing one of the supported coolant brands.
Compare the measured boiling point with the reference value to judge whether the coolant may need replacement.

Specifications

Confirm the operating voltage, test time, coolant compatibility, boiling point range, cable length, display, and main part layout before use.

Basic Information
Product	AUTOOL AS509 Automotive Coolant Boiling Point Tester
Test Purpose	Measure coolant boiling point and help determine whether coolant replacement is needed
Test Modes	Normal Mode and Brand Mode
Supported Brands	23 coolant brands in Brand Mode
Display	1.6-inch OLED display
Power And Testing
Operating Voltage	10-14V
Power Source	12V external battery power via power clamps
Testing Time	20-40 seconds
Product Dimensions	88×88×146mm
Operating Temperature Range	0-50°C
Power Cable Length	1.3m / 130cm
Coolant Compatibility
Compatible Coolant Types	Ethylene Glycol, Propylene Glycol, and Water
Diluted Coolant Boiling Point Range	100-120°C / 212-248°F
Original Manufacturer Reference Range	106-191°C / 221-376°F
Structure
Main Parts	OLED Display, TAB Button, START Button, Air Vent, Test Rod, Wire Protector, Power Clamp, and Power Cable
Protection	Reverse polarity protection and overheat protection
Support	3-year warranty for eligible non-human damage cases and lifetime maintenance support

AUTOOL AS509 product specifications image

AUTOOL AS509 product structure and parts image

AUTOOL AS509 12V power clamp and operation detail image

Basic Information

ProductAUTOOL AS509 Automotive Coolant Boiling Point Tester

Test PurposeMeasure coolant boiling point and help determine whether coolant replacement is needed

Test ModesNormal Mode and Brand Mode

Supported Brands23 coolant brands in Brand Mode

Display1.6-inch OLED display

Power And Testing

Operating Voltage10-14V

Power Source12V external battery power via power clamps

Testing Time20-40 seconds

Product Dimensions88×88×146mm

Operating Temperature Range0-50°C

Power Cable Length1.3m / 130cm

Coolant Compatibility

Compatible Coolant TypesEthylene Glycol, Propylene Glycol, and Water

Diluted Coolant Boiling Point Range100-120°C / 212-248°F

Original Manufacturer Reference Range106-191°C / 221-376°F

Structure

Main PartsOLED Display, TAB Button, START Button, Air Vent, Test Rod, Wire Protector, Power Clamp, and Power Cable

ProtectionReverse polarity protection and overheat protection

Support3-year warranty for eligible non-human damage cases and lifetime maintenance support

Product Comparison

Use the AS series comparison to choose the right AUTOOL fluid analyzer for brake fluid, engine oil, transmission fluid, power steering fluid, or coolant condition testing.

AS501 / AS502Brake fluid testers for brake fluid water content testing

AS503Engine oil quality tester using transmittance-based evaluation

AS505Transmission fluid tester for transmission oil condition checking

AS506Brake fluid boiling point tester for DOT brake fluid condition checks

AS507Power steering fluid tester for steering fluid condition testing

AS509Coolant boiling point tester with Flash Point Heating Technology, Normal / Brand Mode, and 23 coolant brand support

AUTOOL Automotive Oil and Fluid Analyzers comparison chart including AS509

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Manual And Downloads

Download the AUTOOL AS509 EN-DE manual for setup, operation, coolant brand mode, test process, specifications, and safety guidance.

AUTOOL AS509 User Manual

Open the PDF manual for AS509 coolant boiling point testing, Normal Mode, Brand Mode, supported brands, operation, and product specifications.

Download Manual

Need Setup Confirmation?

Contact AUTOOL Store if you need help confirming coolant brand mode, boiling point reference values, 12V power connection, manual use, or after-sales support.

Emailsupport@autoolstore.com WhatsApp+86 189 2647 7404

AUTOOL AS509 packing list and package contents

What Is In The Box

The packing list uses one most relevant package image to show the AS509 tester and included accessories.

Main UnitAUTOOL AS509 Coolant Boiling Point Tester

Carrying CaseProtective storage case shown in the package image

Sampling ToolsBeaker, syringe, and tube shown in the package image

Power12V battery clamps and power cable

DocumentationUser manual

PackageRetail box shown in the package image

Questions And Answers

These answers cover coolant compatibility, Normal Mode, Brand Mode, sample volume, 12V power, supported brands, and boiling point reference values before use.

What Coolant Types Can AS509 Test?

What Is The Difference Between Normal Mode And Brand Mode?

How Much Coolant Sample Is Needed?

Does AS509 Need A 12V Battery?

What Brands Are Supported In Brand Mode?

What Does The Boiling Point Reference Value Mean?

How Long Does One Test Take?

What Safety Protection Does AS509 Include?

Warranty And Contact

For AS509 product support, coolant brand mode confirmation, boiling point reference value questions, manual help, 12V power / clamp connection support, replacement parts, or after-sales service, contact AUTOOL Store directly.

Pre-Sales And Product Support

AUTOOL provides a 3-year warranty for eligible non-human damage cases and lifetime maintenance support. Contact support if you need help with coolant brand selection, test interpretation, compatible coolant type, operation steps, or replacement parts.

3-year warranty for eligible non-human damage cases
Lifetime maintenance support
Coolant brand mode and boiling point reference value support
12V power / clamp connection support
Manual, operation, replacement parts, and after-sales support

Email Supportsupport@autoolstore.com WhatsApp Support+86 189 2647 7404

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Automotive Repair & Testing Equipment

Automotive Repair & Maintenance Equipment

Carbon Deposit Cleaning Equipment

Wheel and Tire Repair Equipment

Workshop Tool Storage Series

Electric Vehicle Charger Series

OBD Diagnostic Tools

Accessories

AUTOOL AS509 Coolant Boiling Point Tester

Product Overview

Key Features

High-Sensitivity Sensor

Dual Mode Selection

Supports 23 Coolant Brands

Built-In Reference Values

1.6-Inch HD OLED Display

Dual Safety Protection

How To Use

Draw Coolant Sample

Connect 12V Power

Insert Test Rod

Start Test

Use Notes

Specifications

Product Comparison

Related Products

Related Guides

Manual And Downloads

AUTOOL AS509 User Manual

Need Setup Confirmation?

What Is In The Box

Questions And Answers

Warranty And Contact

Pre-Sales And Product Support

Reviews

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