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AUTOOL BT280 Smart Automotive Electrical Circuit Tester, Oscilloscope, Injector & Relay Analyzer (9-30V)

|SKU: OTO0375||

The AUTOOL BT280 Smart Automotive Electrical System Circuit Tester is AUTOOL's flagship 9V–30V DC power probe analyzer—combining a Smart Auto-Ranging Multimeter, real-time Oscilloscope Waveform Mode, a 0–5V Adjustable Sensor Power Supply, 4-mode Fuel Injector Pulse Tester, dedicated Relay Test Mode, and 1A–18A Protected Component Activation on a 2.4-inch color TFT screen.

System Voltage
9V – 30V DC (12V Cars & 24V Trucks)
Core Modes
Oscilloscope · Multimeter · 0-5V Supply
Active Tests
Component Activation · Injector · Relay
Measurement Range
0.1–100V DC · 0–10MΩ · 1–18A Breaker
Display & UI
2.4" Color TFT LCD · Multi-Language
Warranty
1-Year Official Otoeko Warranty
✦ 7-in-1 Flagship: Oscilloscope + Multimeter + Injector + Relay + Activation ✦ 0-5V (≤100mA) Adjustable Output Simulates Sensor Signals to ECU ✦ Programmable 1A–18A Digital Circuit Breaker Overload Protection ✦ Dual LED Worklights + USB Firmware Upgrade + Hard Carrying Case
19.129,90₺27.629,90₺
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AUTOOL BT280 · FLAGSHIP 7-IN-1 SMART ELECTRICAL ANALYZER

AUTOOL BT280 Smart Automotive Circuit Tester, Oscilloscope & Component Activator

View live sensor waveforms on the color oscilloscope, supply 0–5V reference voltages, pulse fuel injectors in 4 modes, test 4/5-pin relays, and activate vehicle components with adjustable 1–18A overload protection.

  • Oscilloscope + Multimeter
  • 0-5V Sensor Supply
  • Injector & Relay Test
AUTOOL BT280 Smart Automotive Electrical Circuit Tester, Oscilloscope, Injector & Relay Analyzer (9-30V)
7 ModesAll-in-One — Smart, Multimeter, Scope, Relay, Injector, 0-5V, Activation
0–100VWide Range — Measures DCV, 0-10MΩ resistance, 0-10KHz frequency & Amps
0–5VSensor Supply — ≤100mA current-limited reference voltage generator
1–18ASmart Breaker — User-adjustable electronic overload circuit breaker
LIVE OSCILLOSCOPE MODE0-5V SENSOR POWER SUPPLY4-MODE INJECTOR TESTER4/5-PIN RELAY ANALYZERCOMPONENT ACTIVATION1A-18A DIGITAL BREAKERLIVE OSCILLOSCOPE MODE0-5V SENSOR POWER SUPPLY4-MODE INJECTOR TESTER4/5-PIN RELAY ANALYZERCOMPONENT ACTIVATION1A-18A DIGITAL BREAKER

Engineered for Professional Workshop Demands

The AUTOOL BT280 is built to deliver speed, accuracy, and durability in busy service bays.

AUTOOL BT280 Smart Automotive Circuit Tester, Oscilloscope & Component Activator
Smart Auto-Detection & Full Multimeter

Automatically identifies DC voltage (0.1–100V) and resistance (0–10MΩ) in Smart Mode, or measures VDC, current (AMP), frequency (Hz), diode, continuity, and polarity.

Real-Time Oscilloscope Waveform Graphing

Plots live voltage waveforms over time to diagnose erratic camshaft/crankshaft sensors, O2 sensors, PWM actuators, and alternator ripple.

0–5V Adjustable Sensor Power Supply

Outputs a clean, current-limited (≤100mA) 0V to 5V DC signal to verify ECU sensor reference wiring (MAP, MAF, TPS) without risking module damage.

Fuel Injector Pulse, Relay Test & Component Activation

Pulses injectors across 4 duty modes (MOD1–MOD4), tests 4/5-pin relays (pins 30, 85, 86, 87) with visual schematics, and powers blowers, pumps, and lights directly.

Power Up Fuel Pumps, Fans & Motors Directly at the Probe Tip

PROTECTED COMPONENT ACTIVATION

Power Up Fuel Pumps, Fans & Motors Directly at the Probe Tip

Instantly determine whether a component is dead or suffering from open wiring by sending battery positive (+) or ground (-) straight from the probe tip in Momentary, Latch, or Alternate mode.

  • Programmable 1A to 18A electronic circuit breaker prevents melted wires
  • Audible buzzer and red/green polarity LEDs confirm circuit state
  • Safely activates starter solenoids, window regulators, cooling fans, and bulbs
4-Mode Injector Driver & Visual Relay Pinout Verification

INJECTOR & RELAY TEST LAB

4-Mode Injector Driver & Visual Relay Pinout Verification

Connect the included adapter leads to pulse fuel injectors in MOD1–MOD4 patterns or verify 4-pin and 5-pin automotive relays right on screen.

  • MOD 1 (Single pulse), MOD 2 (Short rapid), MOD 3 (Long pulse), MOD 4 (Continuous)
  • On-screen relay pinout diagram (30, 85, 86, 87) shows live contact switching
  • 0–5V supply mode triggers alarm if load exceeds 100mA
2.4

ERGONOMIC WORKSHOP KIT

2.4" Color TFT Display, Dual LED Headlights & USB Upgradable

Designed for bumper-to-bumper diagnostics on 12V cars and 24V trucks, complete with a heavy-duty extension harness and blow-molded carrying case.

  • Customizable UI background themes and multi-language menu (including Turkish & English)
  • USB port for PC firmware updates
  • Complete accessory kit stored in a rugged hard case

Detailed Visual & Technical Infographic Showcase

Close-up hardware details and application scenes of the AUTOOL BT280.

AUTOOL BT280 Smart Automotive Electrical Circuit Tester, Oscilloscope, Injector & Relay Analyzer (9-30V) - 1
AUTOOL BT280 Smart Automotive Electrical Circuit Tester, Oscilloscope, Injector & Relay Analyzer (9-30V) - 2
AUTOOL BT280 Smart Automotive Electrical Circuit Tester, Oscilloscope, Injector & Relay Analyzer (9-30V) - 3
AUTOOL BT280 Smart Automotive Electrical Circuit Tester, Oscilloscope, Injector & Relay Analyzer (9-30V) - 4
AUTOOL BT280 Smart Automotive Electrical Circuit Tester, Oscilloscope, Injector & Relay Analyzer (9-30V) - 5
AUTOOL BT280 Smart Automotive Electrical Circuit Tester, Oscilloscope, Injector & Relay Analyzer (9-30V) - 6
AUTOOL BT280 Smart Automotive Electrical Circuit Tester, Oscilloscope, Injector & Relay Analyzer (9-30V) - 7
AUTOOL BT280 Smart Automotive Electrical Circuit Tester, Oscilloscope, Injector & Relay Analyzer (9-30V) - 8
AUTOOL BT280 Smart Automotive Electrical Circuit Tester, Oscilloscope, Injector & Relay Analyzer (9-30V) - 9
AUTOOL BT280 Smart Automotive Electrical Circuit Tester, Oscilloscope, Injector & Relay Analyzer (9-30V) - 10
AUTOOL BT280 Smart Automotive Electrical Circuit Tester, Oscilloscope, Injector & Relay Analyzer (9-30V) - 11

Technical Specifications & Hardware Parameters

Complete manufacturer-verified technical data and operating ranges.

Core Performance & Measurement Data
Brand / ModelAUTOOL BT280 Smart Circuit Tester
Operating Voltage9V – 30V DC (12V & 24V Vehicle Systems)
DC Voltage Range0.1V – 100V DC
Resistance Range0 Ω – 10 MΩ
Frequency Range0 Hz – 10 KHz
Adjustable Breaker1A – 18A Digital Overload Protection
Hardware, Build & Warranty Details
0-5V Power Supply0V – 5V DC Adjustable (Current Limit ≤100mA)
Injector Test Modes4 Pulse Modes (MOD1 / MOD2 / MOD3 / MOD4)
Diagnostic FunctionsOscilloscope, Smart Test, Relay Test, P-N, Diode
Display & Lighting2.4" Color TFT LCD + Dual Front LED Worklights
Languages & UpdatesMulti-Language (TR/EN) · USB Upgradable
Warranty1-Year Official Otoeko Warranty

Workshop Application & Operating Guide

Recommended 4-step standard operating procedure for accurate results.

Connect to Vehicle Battery

Clip the red and black clamps to the 12V or 24V vehicle battery and select your desired mode on the 2.4" TFT screen.

Probe with Smart Mode or Scope

Touch the probe tip to any circuit to automatically read voltage/resistance or plot live sensor waveforms.

Simulate 0-5V or Activate Components

Set a 0–5V output to test ECU signal integrity, or set the 1–18A breaker limit to activate motors and lights.

Run Injector & Relay Diagnostics

Attach the dedicated relay or injector lead to test relay switching and fuel injector pulsing in seconds.

Conventional Methods vs. Professional Diagnostics

How precision engineering eliminates guesswork and comebacks.

Conventional / Basic Methods
  • Incandescent test lights can overload and damage modern ECUs
  • Standard multimeters cannot activate components or pulse injectors
  • Entry-level probes (like BT160/BT260) lack Oscilloscope, 0-5V supply, Injector & Relay modes
  • Fixed-amp breakers cannot be dialed down for delicate circuits
With AUTOOL BT280
  • ECU-safe high-impedance probing plus 0–5V ≤100mA sensor supply
  • Instant Momentary/Latch/Alternate component activation
  • Integrated Oscilloscope, 4-Mode Injector Tester & Relay Analyzer
  • Programmable 1A–18A electronic circuit breaker protection
Package Contents — Ready for the Workshop

Package Contents — Ready for the Workshop

Complete factory kit inspected prior to dispatch.

  • 1 × AUTOOL BT280 Smart Automotive Circuit Tester Main Unit
  • 1 × Heavy-Duty Battery Clamp Harness & Long Extension Cable
  • 1 × Relay Test Lead & Fuel Injector Test Adapter
  • 1 × Solid Copper Probe Tips, Cigarette Lighter Adapter, USB Cable & Hard Case

1 Year Official Otoeko Warranty

The AUTOOL BT280 is backed by a 1 Year official Otoeko warranty against manufacturing defects, with full technical support.

Frequently Asked Questions

Key technical questions from technicians and workshops about the AUTOOL BT280.

How does AUTOOL BT280 differ from BT260?

BT280 is the flagship model adding a Live Oscilloscope, 0–5V Adjustable Sensor Power Supply, 4-Mode Fuel Injector Tester, Dedicated Relay Tester, Smart Auto-Detection Mode, and a programmable 1A–18A digital circuit breaker.

What is the 0–5V Power Supply mode used for?

It generates a clean 0V to 5V reference voltage (limited to 100mA) so you can simulate sensor outputs (MAP, MAF, TPS) to the ECU and verify wiring integrity on your scan tool.

Is component activation safe if the circuit is shorted?

Yes, the programmable 1A–18A electronic circuit breaker trips immediately if current exceeds your preset threshold.

How does the fuel injector test work?

BT280 outputs 4 selectable pulse patterns (MOD1–MOD4) directly to the fuel injector connector so you can listen for solenoid clicking or observe spray patterns.

Does it work on 24V heavy-duty trucks?

Yes, it supports 9V to 30V DC systems across both 12V passenger cars and 24V trucks.

What warranty is included?

Backed by a 1-year official Otoeko distributor warranty.

Upgrade your service bay with the AUTOOL BT280.

Order today with official AUTOOL distributor warranty and fast shipping.

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