2026 AUTOOL BT280 Electric System Circuit Tester Automotive Electrical System Tools 9V-30V Electrical System Diagnostic Tool

Buying Guides

Lead Time	Within 72 working hours after payment received
Remote Delivery	If your delivery address is remote area in DHL/FEDEX/UPS system, then you need to add extra 45usd as remote delivery fee
Warranty	1 Year Warranty
Quality	Superior and more times test before shipping

Store Comment & Buyer Tips

1. Item CD might be easily broken during transportation, so if CD can't be readable, please contact us to send you the download link. Please do not dispute or leave negative feedback for this.

2. If you have any questions, please feel free to contact us first, and we will do our best to assist you.

Products Description

AUTOOL BT280 Electric System Tester is the newest generation intelligent Electrical System Circuit Tester with a 2.4-inch large-size LCD screen display. It is dedicated to testing all 9V-30V vehicle electrical systems. BT280 is Convenient, Fast, and Intelligent!

Feature 01

Multimeter Mode & Smart Test

Covered with comprehensive parameters of a Multimeter, it can quickly test and automatically identify the Voltage, resistance, Positive and Negative poles of the tested component, bringing the user a lot of conveniences.

Feature 02

Oscilloscope Mode & Relay Test

Not only able to display the parameter curve diagram of the tested component, such as voltage, frequency, time, etc., but can also test common automotive relays, including 5-terminal and 4-terminal relays.

Feature 03

Component Activation & Injector Mode

It can generate "Active" signals for components like lights, motors, and other on-board electronic devices. Different pulse signals can also be output to the injector, providing 4 pulse modes to better detect injector conditions.

Feature 04

0-5V Power Supply & Voltage Alarm

Capable of setting 0-5V output voltage, used to verify the wiring condition of the tested component. Equipped with a voltage setting alarm: if a short circuit or fault causes the voltage to deviate from the set value, the device will alarm.

Feature 05

Multi-Language Feature

Supports 14 languages: English, Spanish, German, Russian, Italian, Polish, Portuguese, French, Vietnamese, Malaysian, Filipino, Indonesian, Arabic, and Thai.

Feature 06

Three Years Warranty & Lifetime Maintenance

For damage caused by non-human factors, AUTOOL promises to resend parts for free within 3 years. For any support needs, contact us and we will respond within 24 hours.

Package List

Package Included:

1pc * AUTOOL BT280 Electric System Tester main unit
1pc * Solid copper test probe tip
1pc * Extension connection line
1pc * Battery clamp
1pc * Relay test line
1pc * Probe adapter
1pc * 25Amp fuse
1pc * User manual

Our Advantages

Packaging & Shipping

Frequently Asked Questions

What voltage systems does the AUTOOL BT280 support?

The AUTOOL BT280 is designed to test all 9V to 30V vehicle electrical systems, making it highly versatile for cars, trucks, and other automotive equipment.

How does the smart test mode work?

Under the Smart Test mode of the Multimeter feature, the device automatically identifies the voltage, resistance, and positive/negative poles of the component under test.

What languages are supported by the system?

It supports 14 languages including English, Spanish, German, French, Russian, Italian, Polish, Portuguese, Vietnamese, Malaysian, Filipino, Indonesian, Arabic, and Thai.

What should I do if the software/manual CD is damaged?

CDs can sometimes get damaged in transit. If your CD is unreadable, please contact us immediately to receive a direct digital download link.

What is the warranty period for the AUTOOL BT280?

The device comes with a 3-Year Warranty for non-human damage along with lifetime maintenance services.

Is there a remote delivery fee for shipping?

Yes, if your address is designated as a remote area in the DHL, FEDEX, or UPS delivery systems, an additional remote delivery fee of 45 USD will be required.

Product Detail

2026 AUTOOL BT280 Electric System Circuit Tester Automotive Electrical System Tools 9V-30V Electrical System Diagnostic Tool

Product Description

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Product Detail

2026 AUTOOL BT280 Electric System Circuit Tester Automotive Electrical System Tools 9V-30V Electrical System Diagnostic Tool

Product Description

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