{"id":24713,"date":"2021-06-03T20:25:49","date_gmt":"2021-06-03T12:25:49","guid":{"rendered":"https:\/\/shop.autooltech.com\/product\/autool-bt280-car-electrical-circuit-tester-power-probe-automotive-scanner-electric-system-tester-voltmeter-diagnostic-tool-pb100\/"},"modified":"2026-05-20T01:53:54","modified_gmt":"2026-05-20T09:53:54","slug":"autool-bt280-car-electrical-circuit-tester-power-probe-automotive-scanner-electric-system-tester-voltmeter-diagnostic-tool-pb100","status":"publish","type":"product","link":"https:\/\/autoolstore.com\/lt\/product\/autool-bt280-car-electrical-circuit-tester-power-probe-automotive-scanner-electric-system-tester-voltmeter-diagnostic-tool-pb100\/","title":{"rendered":"AUTOOL BT280 Electrical Circuit Tester Power Probe Electric System Tester"},"content":{"rendered":"
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AUTOOL BT280<\/div>\n

Product Overview<\/h2>\n

The AUTOOL BT280 is a newest-generation intelligent electrical system circuit tester for 9-30V vehicle electrical systems. With a 2.4-inch LCD color display, smart test, multimeter mode, oscilloscope mode, relay test, injector test, component activation, and adjustable 0-5V power supply, BT280 helps make electrical diagnosis convenient, fast, and intelligent.<\/p>\n

\n Smart Test<\/span>\n Multimeter Mode<\/span>\n Oscilloscope Mode<\/span>\n Relay \/ Injector Test<\/span>\n <\/div>\n
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9-30V<\/span>Working Voltage<\/span><\/div>\n
0.1-100V<\/span>Voltage Measuring<\/span><\/div>\n
0-18A<\/span>Current Range<\/span><\/div>\n
3 Years<\/span>Warranty Support<\/span><\/div>\n <\/div>\n <\/div>\n
\n \"AUTOOL\n \n Click to enlarge<\/span>\n <\/figure>\n <\/div>\n <\/section>\n\n
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Product Comparison<\/div>\n

Product Comparison<\/h2>\n

BT280 is the most complete model in this BT comparison group. Compare the voltage range, current range, cable length, display, language support, and advanced test modes before choosing a circuit tester.<\/p>\n

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BT280 Focus<\/span>Choose BT280 if you need smart test, multimeter mode, oscilloscope mode, relay test, injector test, component activation, 0-5V power supply, and online update in one tester.<\/strong><\/div>\n
Measurement Upgrade<\/span>BT280 supports 0.1-100V DC \/ AC voltage measurement, 1-200K\u03a9 resistance measurement, and 0-18A current measurement.<\/strong><\/div>\n
Display And Language<\/span>BT280 uses a 320 \u00d7 240dpi TFT color display and supports 14 languages, while BT250 and BT260 use 160 \u00d7 128dpi displays with 9 languages.<\/strong><\/div>\n
Compared With BT160 \/ BT210<\/span>BT160 and BT210 are more basic testers. BT280 adds a color screen, broader measuring ranges, resistance detection, smart test, oscilloscope, relay, injector, active component, 0-5V output, and online update functions.<\/strong><\/div>\n
Compared With BT250 \/ BT260<\/span>BT250 and BT260 cover common voltage, continuity, diode, polarity, grounding, and resistance checks. BT280 is better for users who also need advanced diagnostic modes and higher current measurement up to 18A.<\/strong><\/div>\n <\/div>\n <\/div>\n
\n \"Comparison\n Click to enlarge<\/span>\n <\/figure>\n <\/div>\n <\/section>\n\n
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Key Features<\/div>\n

Key Features<\/h2>\n

BT280 combines smart electrical identification, multimeter testing, waveform display, relay and injector testing, component activation, 0-5V output, multi-language support, and protection functions for practical vehicle circuit diagnosis.<\/p>\n <\/div>\n

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Smart Test<\/h3>\n

Quickly tests and identifies voltage, resistance, and positive \/ negative polarity of the tested component.<\/p>\n <\/article>\n

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Multimeter Mode<\/h3>\n

Provides comprehensive multimeter functions for DC voltage, resistance, diode \/ continuity, current, and frequency checks.<\/p>\n <\/article>\n

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Oscilloscope Mode<\/h3>\n

Displays parameter curve diagrams for tested components, including voltage, frequency, and time.<\/p>\n <\/article>\n

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Relay And Injector Test<\/h3>\n

Tests common 4-terminal and 5-terminal automotive relays, and outputs different pulse signals with 4 injector pulse modes.<\/p>\n <\/article>\n

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Component Activation<\/h3>\n

Generates active signals for components such as lights, motors, and other onboard electronic devices when used with the correct connection method.<\/p>\n <\/article>\n

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0-5V Power Supply<\/h3>\n

Sets 0-5V output voltage to verify wiring conditions. If the output voltage differs from the set value by more than 0.1V, the device will alarm.<\/p>\n <\/article>\n

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14 Languages<\/h3>\n

Supports English, Portuguese, Spanish, Italian, Vietnamese, Indonesian, Arabic, Russian, German, French, Polish, Malaysian, Filipino, and Thai.<\/p>\n <\/article>\n

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Online Update And Interface<\/h3>\n

Includes online update support, screen background changeable function, LCD screen, front LED light, red \/ green LED indicator, speaker, USB port, probe tip, and function buttons.<\/p>\n <\/article>\n

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Circuit Protection<\/h3>\n

Includes circuit breaker protection with current adjustable support and current overload protection for safer circuit testing under proper use.<\/p>\n <\/article>\n <\/div>\n\n

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Specifications<\/div>\n

AUTOOL BT280 Product Specifications<\/h2>\n

BT280 is built for 9-30V vehicle electrical systems, with 0.1-100V voltage measuring range, 1-200K\u03a9 resistance range, 0-18A current range, a 6m power cable, and a 2.4-inch color display.<\/p>\n <\/div>\n\n

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Core Specifications<\/td><\/tr>\n
Product<\/td>AUTOOL BT280 Electric System Tester<\/td><\/tr>\n
Supported Electrical Systems<\/td>9-30V vehicle electrical systems<\/td><\/tr>\n
Working Voltage<\/td>9-30V<\/td><\/tr>\n
DC Voltage Measurement Range<\/td>0.1-100V<\/td><\/tr>\n
AC Voltage Measurement Range<\/td>0.1-100V<\/td><\/tr>\n
Resistance Measurement Range<\/td>1-200K\u03a9<\/td><\/tr>\n
Current Measuring Range<\/td>0-18A<\/td><\/tr>\n
Power Cable Length<\/td>6m<\/td><\/tr>\n
Screen<\/td>2.4-inch LCD \/ 320 \u00d7 240dpi TFT color display<\/td><\/tr>\n
LED<\/td>Front LED light and red \/ green LED indicator<\/td><\/tr>\n
Supported Functions<\/td><\/tr>\n
Smart Test<\/td>Voltage, resistance, and positive \/ negative polarity identification<\/td><\/tr>\n
Multimeter Mode<\/td>DC voltage, resistance, diode \/ continuity, current, and frequency<\/td><\/tr>\n
Oscilloscope Mode<\/td>Parameter curve display for voltage, frequency, and time<\/td><\/tr>\n
Relay Test<\/td>Common 4-terminal and 5-terminal automotive relays<\/td><\/tr>\n
Injector Test<\/td>Injector pulse signal output with 4 pulse modes<\/td><\/tr>\n
0-5V Power Supply<\/td>Adjustable output voltage with voltage setting alarm<\/td><\/tr>\n
Component Activation<\/td>Active signal output for lights, motors, and onboard electronic devices<\/td><\/tr>\n
Other Functions<\/td>Diode test, continuity test, polarity test, grounding test, DC voltage detection, resistance detection, current overload protection, circuit breaker protection, screen background changeable, and online update<\/td><\/tr>\n
Language And Support<\/td><\/tr>\n
Languages<\/td>English, Portuguese, Spanish, Italian, Vietnamese, Indonesian, Arabic, Russian, German, French, Polish, Malaysian, Filipino, and Thai<\/td><\/tr>\n
Warranty<\/td>3-year warranty support for eligible non-human damage cases, with lifetime maintenance support<\/td><\/tr>\n <\/tbody>\n <\/table>\n <\/div>\n
\n \"AUTOOL\n \n Click to enlarge<\/span>\n <\/figure>\n <\/div>\n
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\n Core Specifications<\/summary>\n
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Product<\/span>AUTOOL BT280 Electric System Tester<\/strong><\/div>\n
Supported Electrical Systems<\/span>9-30V vehicle electrical systems<\/strong><\/div>\n
Working Voltage<\/span>9-30V<\/strong><\/div>\n
DC Voltage Measurement Range<\/span>0.1-100V<\/strong><\/div>\n
AC Voltage Measurement Range<\/span>0.1-100V<\/strong><\/div>\n
Resistance Measurement Range<\/span>1-200K\u03a9<\/strong><\/div>\n
Current Measuring Range<\/span>0-18A<\/strong><\/div>\n
Power Cable Length<\/span>6m<\/strong><\/div>\n
Screen<\/span>2.4-inch LCD \/ 320 \u00d7 240dpi TFT color display<\/strong><\/div>\n
LED<\/span>Front LED light and red \/ green LED indicator<\/strong><\/div>\n <\/div>\n <\/details>\n
\n Supported Functions<\/summary>\n
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Smart Test<\/span>Voltage, resistance, and positive \/ negative polarity identification<\/strong><\/div>\n
Multimeter Mode<\/span>DC voltage, resistance, diode \/ continuity, current, and frequency<\/strong><\/div>\n
Oscilloscope Mode<\/span>Parameter curve display for voltage, frequency, and time<\/strong><\/div>\n
Relay Test<\/span>Common 4-terminal and 5-terminal automotive relays<\/strong><\/div>\n
Injector Test<\/span>Injector pulse signal output with 4 pulse modes<\/strong><\/div>\n
0-5V Power Supply<\/span>Adjustable output voltage with voltage setting alarm<\/strong><\/div>\n
Component Activation<\/span>Active signal output for lights, motors, and onboard electronic devices<\/strong><\/div>\n
Other Functions<\/span>Diode test, continuity test, polarity test, grounding test, DC voltage detection, resistance detection, current overload protection, circuit breaker protection, screen background changeable, and online update<\/strong><\/div>\n <\/div>\n <\/details>\n
\n Language And Support<\/summary>\n
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Languages<\/span>English, Portuguese, Spanish, Italian, Vietnamese, Indonesian, Arabic, Russian, German, French, Polish, Malaysian, Filipino, and Thai<\/strong><\/div>\n
Warranty<\/span>3-year warranty support for eligible non-human damage cases, with lifetime maintenance support<\/strong><\/div>\n <\/div>\n <\/details>\n <\/div>\n <\/section>\n\n\n\n
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Before You Order And Use<\/div>\n

Before You Order And Use<\/h2>\n

BT280 is an active electrical circuit tester. Confirm the system voltage, selected mode, connection method, and tested component before applying output or activation functions.<\/p>\n <\/div>\n

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Use Only On 9-30V Systems<\/h3>\n

BT280 is dedicated to 9-30V vehicle electrical systems. Do not use it outside the supported working voltage range.<\/p>\n <\/article>\n

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Confirm Before Activation<\/h3>\n

Before using component activation, confirm the load, circuit, polarity, and connection method to avoid incorrect operation.<\/p>\n <\/article>\n

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Use 0-5V Output Carefully<\/h3>\n

Use the 0-5V power supply function only for suitable component wiring verification and follow the voltage setting alarm prompts.<\/p>\n <\/article>\n

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Select The Correct Mode<\/h3>\n

Choose the correct mode before smart test, multimeter, oscilloscope, relay, injector, polarity, or active component testing.<\/p>\n <\/article>\n

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Check Accessories First<\/h3>\n

Use the proper probe, test clamp, auxiliary ground lead, relay test port, USB cable, or extension lead according to the test task.<\/p>\n <\/article>\n

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Read The Manual<\/h3>\n

Download and review the BT280 manual before advanced relay, injector, component activation, 0-5V output, or oscilloscope testing.<\/p>\n <\/article>\n <\/div>\n <\/section>\n\n

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What Is In The Box<\/div>\n

What Is In The Box<\/h2>\n

The packing list image shows the BT280 main unit and included accessories. Refer to the package image for the final accessory layout.<\/p>\n

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Main Unit<\/span>AUTOOL BT280 electric system tester with probe tip, LCD screen, front LED light, red \/ green LED indicator, function buttons, speaker, USB port, and auxiliary ground lead.<\/strong><\/div>\n
Power Connection<\/span>Battery clamp power cable and test clamps shown in the package image.<\/strong><\/div>\n
Testing Accessories<\/span>Probe accessories, test leads, extension lead, and related connectors shown in the package image.<\/strong><\/div>\n
Storage And Packaging<\/span>Carrying case and AUTOOL BT280 retail box.<\/strong><\/div>\n
Manual And Cable<\/span>User manual and USB cable shown in the package image.<\/strong><\/div>\n
Final Check<\/span>Accessories may be checked against the official packing list image before use.<\/strong><\/div>\n <\/div>\n <\/div>\n <\/div>\n <\/section>\n\n
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Related Products<\/div>\n

Related Products<\/h2>\n

Compare related AUTOOL electrical testers before choosing the right voltage range, current range, cable length, display, language support, clamp function, and advanced diagnostic modes.<\/p>\n <\/div>\n

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