AUTOOL BT280 Automotive Circuit Tester with Oscilloscope

AUTOOL BT280 Smart Automotive Circuit Tester

Advanced Smart Automotive Circuit Analysis

The AUTOOL BT280 Automotive Circuit Tester is a professional all-in-one electrical diagnostic tool designed for modern vehicle servicing and fault finding. Combining circuit testing, multimeter functions, oscilloscope analysis, relay testing, fuel injector testing and component activation, it delivers comprehensive diagnostics from a single device. Featuring a 2.4-inch HD colour display, smart detection technology and dual safety protection, the BT280 enables technicians to accurately diagnose electrical faults, verify component performance and streamline workshop efficiency.

Main Features

Smart Detection Technology – Automatically identifies voltage, resistance and polarity signals while displaying precise measurements on the HD colour screen for faster and more efficient diagnostics.
Professional Circuit Testing – Quickly locates open circuits, short circuits, continuity faults and wiring issues across a wide range of automotive electrical systems.
Integrated Multimeter Functions – Measures voltage, resistance, current, frequency and diode performance, reducing the need for multiple testing devices in the workshop.
Oscilloscope Analysis – Displays signal waveforms, amplitude and frequency data to assist technicians in identifying intermittent faults and electrical irregularities.
Relay Testing Capability – Supports testing of common 4-pin and 5-pin automotive relays to verify operation and diagnose faulty switching components.
Component Activation Function – Features instant, lock and pulse activation modes for operating motors, lights, relays and other electrical components directly from the tester.
Adjustable Power Supply Output – Provides adjustable 0–5V output with a current limit of up to 100mA, making it ideal for ECU and ECM wiring verification.
Fuel Injector Testing – Offers four pulse signal modes to evaluate injector performance, responsiveness and operating condition.
2.4-Inch HD Colour Display – Equipped with a high-resolution backlit screen that clearly presents measurements, waveforms and diagnostic information in any lighting environment.
Dual Safety Protection – Incorporates an integrated 20A fuse and overload protection system to safeguard both the tester and the vehicle's electrical system.
Multi-Vehicle Compatibility – Suitable for diagnosing electrical systems in passenger vehicles, motorcycles, trucks, caravans, marine vessels and construction equipment.

Package Includes

AUTOOL BT280 Automotive Circuit Tester
Main Test Probe
Battery Connection Clips
Auxiliary Ground Lead
Relay Test Cable
Fuel Injector Test Cable
User Manual
Storage Packaging

AUTOOL BT280 Automotive Circuit Tester with Oscilloscope

Smart Automatic Voltage & Resistance Detection

Integrated Multimeter Functions

Built-in Oscilloscope Analysis

Fuel Injector Pulse Testing

Relay Testing Capability

Component Activation Functions

Adjustable Power Supply Output

2.4" HD Colour Display

Dual Safety Protection System

Supports 14 Languages

Powered Directly by Vehicle Battery

Suitable for Cars, Trucks, Motorcycles & Marine Applications

AUTOOL BT280 Automotive Circuit Tester

AUTOOL BT280 Technical Specifications & Performance Data

Model: BT280

Display: 2.4" HD Colour Display

Working Voltage: 9–30V DC

Measuring Voltage: 0.1–100V

Resistance Measurement Range: 1–200kΩ

Current Measuring Range: 0–18A

Power Supply Output: 0–5V Adjustable

Output Current Limit: 100mA

Relay Testing: 4-Pin & 5-Pin Relays

Oscilloscope Function: Yes

Multimeter Function: Yes

Fuel Injector Testing: 4 Pulse Modes

Component Activation: Instant, Lock & Pulse Modes

Polarity Testing: Yes

Diode Testing: Yes

Frequency Measurement: Yes

Safety Protection: Built-In 20A Fuse

Cable Length: 6m

Language Support: 14 Languages

Power Source: Vehicle Battery

Vehicle Compatibility: Cars, Trucks, Motorcycles, RVs, Marine & Heavy Equipment

AUTOOL BT280 Smart Circuit Diagnostic Tool

Delivery

99% of purchases are dispatched from our Melbourne warehouse within 24 hours of payment. Every parcel is shipped with Australia Post e-Parcel, complete with tracking and signature on delivery.

Need it sooner? Express shipping is also available—check if your postcode is in the Next Day Delivery network.

Returns

Shop with confidence. We offer a 30-day money back guarantee on all orders. If you’ve had a change of mind, simply return the item in re-original condition and we’ll make it right.

Warranty

All AZscanners products are backed by a 12-month warranty (unless otherwise stated). We stand by the quality of our tools and will repair or replace your item if a covered fault arises.

Buying your scan tool should feel easy, safe, and backed by a team you can trust.

That’s why thousands of mechanics, fleets, and car owners across Australia choose AZscanners. Here’s our promise to you:

Trusted Since 2013

We’ve been Australia’s go-to supplier of premium diagnostic scan tools for over a decade. From workshops and mobile mechanics to DIY users, we’ve built our reputation on quality, reliability, and real support.

30-Day Money Back Guarantee

Changed your mind? No problem. You have 30 days to return your item in its original condition for a full refund. It’s our way of making your purchase completely risk-free.

Quality You Can Count On

Every product in our range is hand-picked for performance, compatibility, and durability. Whether you’re after a professional-grade scan tool or an easy solution for home use, we’ve got you covered.

Local Support that Cares

We don’t just sell scan tools — we support them. Our team of technicians is here to answer your questions before and after purchase, so you’re never left on your own.

Fast & Reliable Shipping

99% of orders are shipped within 24 hours (from our Melbourne warehouse) with tracking and signature included. Need it quicker? Express delivery is available.