The AUTOOL BT280 Electric System Tester is a smart, next-generation diagnostic tool designed for fast and efficient testing of 9V–30V vehicle electrical systems. Featuring a bright 2.4-inch LCD screen, it allows you to quickly identify faults, check continuity, and analyze circuit conditions with ease. Whether you're a professional mechanic or a DIY enthusiast, the BT280 makes electrical diagnostics more convenient, accurate, and intelligent than ever.

AUTOOL BT280 Car Electric Circuit Tester Features

• Multimeter Mode&Smart Test: AUTOOL BT280 Electric System Tester provides comprehensive Multimeter functions. It quickly tests and identifies the voltage, resistance, and polarity of the tested component, offering great convenience to users.
• Oscilloscope Mode&Relay Test: Displays parameter curves, including voltage, frequency, and time. It also tests 4-terminal and 5-terminal automotive relays.
• Component Activation & Injector Mode: It can generate “Active” signals for components, such as lights, motors, and other onboard electronic devices. It outputs different pulse signals to injectors and offers 4 pulse modes, ensuring accurate detection of injector conditions.
• 0-5V Power Supply & Voltage Alarm: Capable of setting 0-5V output voltage, used to verify the wiring condition of the tested component. They are equipped with voltage-setting alarms. If a short circuit or fault causes the voltage to be greater than or less than the set value, the device will alarm.
• Multi-language Feature: 14 languages supported, English, Spanish, German, Russian, Italian, Polish, Portuguese, French, Vietnamese, Malaysian, Filipino, Indonesian, and Arabic.