LANGUAGE & CURRENCY
AUTOOL BT250 Car Electrical Circuit Tester 6V-30V
US$39.00
Key Features
- 6V-30V Testing
- AC DC Modes
- Short Protection
- 6V-30V Testing: Built for 6V-30V automotive circuits so buyers can cover common vehicle electrical checks with one tester.
- AC DC Modes: AC mode measures voltage, frequency, and duty cycle, while DC mode checks voltage values for broader diagnostics.
- Short Protection: Short-circuit and overload protection with automatic reset helps reduce interruption during fault finding.
Secure checkoutFast supportBulk ready
AUTOOL BT250
Product Overview
The AUTOOL BT250 is an automotive electrical circuit tester for 9-30V vehicle systems. It helps technicians quickly check DC voltage, AC voltage, resistance, diode status, continuity, polarity, grounding, and common circuit conditions while providing overload protection, LED lighting, a TFT color display, and 9 language options.
9-30V Systems
AC / DC Voltage
Resistance / Diode
Overload Protection
0-65VAC / DC Range
0-200KΩResistance Range
1.5mPower Cable
3 YearsWarranty
Click to enlarge
Click to enlargeBefore You Order And Use
Before You Order And Use
The BT250 works directly with vehicle electrical circuits. Follow the safety instructions below before checking live circuits, engine compartments, ignition components, or vehicles that may need to run during diagnosis.
Avoid Flammable Vapors
The tester may create sparks when powered circuits are activated. Do not use it near gasoline, fuel vapor, or other flammable materials.
Wear Eye Protection
Wear safety glasses that meet ANSI standards when working around automotive electrical, fuel, or moving systems.
Ventilate The Work Area
If the vehicle must be running during testing, work in a well-ventilated area because exhaust fumes are toxic.
Secure The Vehicle
Place blocks under the wheels, engage the handbrake, and keep the vehicle in Park for automatic transmission or Neutral for manual transmission.
Watch High Voltage Areas
Use extra caution around ignition coils, distributor caps, ignition wires, and spark plugs when the engine is running.
Keep Equipment Clean
Keep the tester dry, clean, and free of oil, water, and grease. Use a clean cloth when cleaning is needed.
Detailed Safety Checklist
- Keep clothing, hair, hands, tools, and test equipment away from operating or hot vehicle components.
- Do not leave the vehicle unattended during testing.
- Keep a fire extinguisher nearby when working around gasoline, chemicals, or electrical equipment.
- Do not connect or disconnect test equipment while the ignition is on or the engine is running.
- When the power switch is pressed, battery current and voltage may be conducted to ground or to a selected circuit, which can create sparks.
- Use the same level of caution as you would when working with welding equipment around flammable vapors.
- Use the tester within its rated range and do not force unsupported tests such as injector, relay, oscilloscope, smart test, or online update functions.
Key Features
Key Features
BT250 combines common electrical test modes with a compact probe-style design, LED lighting, overload protection, and multi-language operation for daily automotive circuit diagnosis.
AC And DC Voltage Detection
DC mode detects circuit voltage values. AC mode supports voltage checks with maximum and minimum voltage, frequency, and duty cycle display for the circuit under test.
Resistance Detection
Measures resistance between the probe tip and the auxiliary ground wire, helping check circuit resistance conditions quickly.
Diode Test Mode
Quickly checks the working status of diode components and helps determine whether the diode circuit is conducting normally.
Continuity, Polarity And Grounding
Supports continuity checks, polarity identification, DC voltage detection, and grounding tests for common vehicle electrical inspection work.
Current Overload Protection
Short-circuit and current overload protection help reduce circuit damage risk. If the internal breaker trips under overload, the tester can automatically reset.
Built-In LED Light
The integrated LED light helps users complete circuit testing in dark engine compartments or low-light repair environments.
1.5m Power Cable
The 1.5m power cable is designed to cover the engine compartment for convenient system checks around the vehicle battery area.
9 Language Options
Supports English, Russian, German, Spanish, French, Italian, Portuguese, Simplified Chinese, and Polish.
Warranty And Support
AUTOOL provides 3-year warranty support for eligible non-human damage cases and lifetime maintenance support for product service needs.
Click to enlarge
Click to enlarge
Click to enlarge
Click to enlarge
Click to enlarge
Click to enlarge
Click to enlarge
Click to enlargeSpecifications
BT250 Electrical System Tester Specifications
Use the specification table to confirm the supported voltage range, resistance range, current range, display, cable length, test functions, and unsupported advanced functions before ordering.
| Core Specifications | |
| Product | AUTOOL BT250 Automotive Electrical System Tester |
| Operation Voltage | 9-30V automotive systems |
| DC Voltage Measurement Range | 0-65V |
| AC Voltage Measurement Range | 0-65V |
| Resistance Measurement Range | 0-200KΩ |
| Current Measuring Range | 0-10A |
| Rated Current | 1-10A |
| Power Cable Length | 1.5m |
| Screen Size | 160×128dpi |
| Display | TFT color display |
| Product Size Reference | 253mm height × 32mm width; 42mm probe tip |
| Supported Functions | |
| DC Voltage Detection Mode | Supported |
| AC Voltage Detection Mode | Supported |
| Resistance Detection Mode | Supported |
| Diode Test Mode | Supported |
| Grounding Test | Supported |
| Polarity Test | Supported |
| Continuity Test | Supported |
| Current Overload Protection | Supported |
| LED Light | Supported |
| Languages | 9 languages: English, Russian, German, Spanish, French, Italian, Portuguese, Simplified Chinese, and Polish |
| Not Supported On BT250 | |
| Temperature Test | Not supported |
| Injector Test | Not supported |
| Relay Test | Not supported |
| 0-5V Power Supply | Not supported |
| Component Activation | Not supported |
| Oscilloscope Mode | Not supported |
| Multimeter Mode | Not supported |
| Smart Test | Not supported |
| Online Update | Not supported |
| Body And Interface | |
| Main Parts | Probe tip, LED light, clamps, LCD display, power switch, auxiliary ground clamp, mode button, sound/radiator area, and power cable |
Click to enlargeCore Specifications
ProductAUTOOL BT250 Automotive Electrical System Tester
Operation Voltage9-30V automotive systems
DC Voltage Measurement Range0-65V
AC Voltage Measurement Range0-65V
Resistance Measurement Range0-200KΩ
Current Measuring Range0-10A
Rated Current1-10A
Power Cable Length1.5m
Screen Size160×128dpi
DisplayTFT color display
Product Size Reference253mm height × 32mm width; 42mm probe tip
Supported Functions
DC Voltage Detection ModeSupported
AC Voltage Detection ModeSupported
Resistance Detection ModeSupported
Diode Test ModeSupported
Grounding TestSupported
Polarity TestSupported
Continuity TestSupported
Current Overload ProtectionSupported
LED LightSupported
Languages9 languages: English, Russian, German, Spanish, French, Italian, Portuguese, Simplified Chinese, and Polish
Not Supported On BT250
Temperature TestNot supported
Injector TestNot supported
Relay TestNot supported
0-5V Power SupplyNot supported
Component ActivationNot supported
Oscilloscope ModeNot supported
Multimeter ModeNot supported
Smart TestNot supported
Online UpdateNot supported
Body And Interface
Main PartsProbe tip, LED light, clamps, LCD display, power switch, auxiliary ground clamp, mode button, sound/radiator area, and power cable
Product Comparison
Product Comparison
Compare BT250 with other AUTOOL BT series circuit testers before choosing the right voltage range, cable length, display, resistance test, diode test, and advanced diagnostic functions.
BT250 FocusBalanced 9-30V model with 0-65V AC/DC voltage measurement, 0-200KΩ resistance test, 0-10A current measuring range, diode test, grounding test, polarity test, continuity test, TFT color display, LED light, 1.5m cable, and 9 languages.
BT160Entry 6-24V tester with a 4m power cable and basic circuit checks, but without TFT color display, resistance detection, LED light, or multiple languages.
BT2109-30V tester with temperature test and LED light, but without resistance measurement, diode test mode, grounding test, TFT color display, or multi-language support.
BT260Similar core capability to BT250, with 9-30V operation, 0-65V AC/DC voltage, 0-200KΩ resistance, 9 languages, and a longer 12m power cable.
BT280High-end option with 0.1-100V voltage range, 0-18A current range, 6m cable, 14 languages, 320×240dpi display, injector test, 0-5V power supply, relay test, component activation, oscilloscope, multimeter, smart test, and online update.
Decision CheckChoose BT250 if you need a compact, cost-effective tester with resistance, diode, grounding, polarity, continuity, AC/DC voltage, TFT display, and 9 languages, but do not need BT280-level advanced functions.
Click to enlargeRelated Products
Related Products
Compare related AUTOOL BT series electrical testers before choosing the right operation voltage, cable length, color display, resistance test, diode test, injector test, relay test, or advanced diagnostic mode.
- Select options This product has multiple variants. The options may be chosen on the product page
AUTOOL BT210 Car Circuit Tester 9-30V Electrical Testers
From US$28.00 - Select options This product has multiple variants. The options may be chosen on the product page
AUTOOL BT160 Automotive Circuit Tester Circuit Checker
From US$33.00 - Select options This product has multiple variants. The options may be chosen on the product page
AUTOOL BT250 Car Electrical Circuit Tester 6V-30V
From US$39.00 - Select options This product has multiple variants. The options may be chosen on the product page
AUTOOL BT260 Electrical Circuit Tester For Trucks
From US$75.00
Manual And Downloads
Manual And Downloads
Download the BT250 / BT260 user manual for operating instructions, button functions, test modes, safety notes, and product setup guidance.
Click to enlargeAUTOOL BT250 / BT260 User Manual
Open the PDF manual for BT250 and BT260 electrical system tester use, operation modes, and safety guidance.
Download ManualNeed Setup Or Model Confirmation?
Contact AUTOOL Store before ordering if you need to confirm BT250 voltage range, cable length, supported test modes, BT250 vs BT260 differences, BT250 vs BT280 differences, or package contents.
Click to enlargeWhat Is In The Box
What Is In The Box
The package image shows the BT250 main tester, battery clamps, auxiliary ground clamp, power cable, user manual, and retail box. Refer to the package image for the final included accessories.
Main UnitAUTOOL BT250 electrical system tester
Battery ClampsPositive and negative battery clamps shown in the package image
Auxiliary Ground ClampAuxiliary ground clamp attached to the tester
Power CableIntegrated 1.5m power cable
DocumentationBT250 / BT260 user manual
Retail BoxAUTOOL BT250 package box
Questions And Answers
These answers cover BT250 voltage range, supported test modes, overload protection, language options, model differences, package contents, safety notes, and warranty support.
BT250 is designed for 9-30V automotive electrical systems. It is suitable for common vehicle circuit checks within its supported voltage and current range.
BT250 supports DC voltage detection, AC voltage detection, resistance detection, diode test mode, grounding test, polarity test, continuity test, LED-assisted testing, and current overload protection for common automotive electrical diagnosis.
No. BT250 does not support injector test, relay test, 0-5V power supply, component activation, oscilloscope mode, multimeter mode, smart test, or online update. Choose BT280 if you need those advanced functions.
BT250 and BT260 share many core test capabilities, including 9-30V operation, 0-65V AC/DC voltage measurement, 0-200KΩ resistance measurement, TFT color display, LED light, diode test, and 9 language options. The main difference is cable reach: BT250 has a 1.5m power cable, while BT260 has a longer 12m power cable.
BT250 is a balanced model for common automotive circuit checks. BT280 is the higher-end option with broader 0.1-100V voltage measurement, 0-18A current range, 14 languages, 320×240dpi screen, injector test, relay test, component activation, oscilloscope, multimeter, smart test, and online update.
BT250 includes short-circuit and current overload protection. If an overload causes the internal circuit breaker to trip, the tester can automatically reset. Always use the tester within its rated current range and avoid unsupported circuit activation.
BT250 supports 9 language options: English, Russian, German, Spanish, French, Italian, Portuguese, Simplified Chinese, and Polish.
No. Do not connect or disconnect test equipment while the ignition is on or the engine is running. When the tester is powered, battery current and voltage may be conducted to ground or to a selected circuit, which can cause sparks.
Refer to the Packing List image for the final package contents. The image shows the BT250 main tester, battery clamps, auxiliary ground clamp, integrated power cable, BT250 / BT260 user manual, and retail box.
AUTOOL provides 3-year warranty support for eligible non-human damage cases and lifetime maintenance support. For product setup, model selection, package confirmation, or troubleshooting, contact AUTOOL Store support.
Warranty And Contact
Warranty And Contact
For BT250 voltage range confirmation, supported test modes, BT250 vs BT260 or BT280 selection, packing list confirmation, manual download, safety guidance, warranty, or troubleshooting, contact AUTOOL Store directly.
Pre-Sales And Product Support
Use support if you need help confirming whether BT250 is suitable for your circuit testing needs, which BT series model to choose, how to read the manual, or which functions are not supported by BT250.
- 3-year warranty support for eligible non-human damage cases
- Lifetime maintenance support
- Voltage range and supported test mode confirmation
- BT250 / BT260 / BT280 model selection
- Packing List and accessory confirmation
- Manual download and safety-use guidance
- Support response as soon as possible, usually within 24 hours
Leave A Review
Reviews
There are no reviews yet.