Autool BT280 | Circuit Tester
Warranty directly via AsTools
Warranty directly via AsTools
We handle warranty cases ourselves, quickly and without involving the manufacturer. Thanks to our own parts inventory and technical expertise, we can usually assist you immediately. Only in exceptional cases do we still send the product to the supplier.
2 years warranty on all products
2 years warranty on all products
All our products come with a 2-year factory warranty. This ensures you long-lasting quality and service.
Easy returns
Easy returns
You can easily request your return through your account. We will send you the return label by email. Return shipping costs are your responsibility.
Professional customer service
Professional customer service
Our experts are ready to help you quickly and professionally, both online and in our physical store. Questions? Feel free to contact us!
The Autool BT280 is a circuit tester with multimeter and oscilloscope for 12 V and 24 V vehicles. It is powered by the vehicle battery and works from 9 to 30 V. In addition to voltage, resistance, diode and frequency, it measures current up to 18 A, and in oscilloscope mode you can view the signal as a curve on the 2.4-inch colour display.
In Smart mode, it automatically recognises voltage, resistance and polarity. There are separate tests for relays (4-pin and 5-pin) and injectors (4 pulse modes), and you can activate components with positive or earth. An adjustable 0–5 V power supply simulates a sensor signal and gives a warning if the voltage deviates by more than 0.1 V.
ADVANTAGES
POINTS TO NOTE
Applications and functions
The BT280 is intended for mechanics and auto electricians who want to check sensors, actuators, relays and injectors in addition to wiring.
Measuring
- Multimeter: DC voltage, resistance, diode, current and frequency.
- Oscilloscope: Voltage and frequency as a curve over time.
- Smart mode: Automatically recognises voltage, resistance and polarity.
- Earth test: Checks whether an earth is good or bad.
Testing and activating
- Relay test: 4-pin and 5-pin relays with the relay test cable.
- Injector test: Pulse output in 4 modes.
- Activate components: Drive lamps, motors and relays.
- 0–5 V power supply: Adjustable, with alarm for deviation of more than 0.1 V.
How to use it
- Connecting: Connect the tester to the vehicle battery.
- Selecting a mode: Smart, multimeter, oscilloscope, relay or injector.
- Measuring: Touch the measuring point and read the display.
- Activating: Apply positive or earth to a component to test it.
- Updating: Update the software online.
Special features and functions
What sets the BT280 apart from a standard power probe:
- Colour display: 2.4-inch TFT, 320 × 240.
- Work lamp: Illuminates the measuring point.
- Online updates: New functions via an update.
- 14 languages: Multilingual menu.
Package contents
- 1x Autool BT280
- 1x Copper measuring point
- 1x Extension cable
- 1x Battery clamps
- 1x Relay test cable
- 1x Measuring point adapter
- 1x 25 A fuse
- 1x User manual
Technical specifications
General
- The brand that manufactures the tester.Brand
- Autool
- What type of device it is. A circuit tester checks current and earth; a wire tracer locates cables and short circuits.Type of tester
- Circuit tester
- The on-board voltage the tester can connect to. For testing lorries as well, 24 V or higher is required.Suitable for system voltage
- 9 to 30 V
- Where the tester draws its power from. Via the vehicle battery or circuit, there is no need to replace batteries.Power supply
- Via vehicle battery
Measuring
- The voltage range in which the tester measures accurately. A wider range is useful for heavier vehicles.DC voltage measuring range
- 0.1 to 100 V
- The resistance values the tester can measure, for instance of sensors or wires.Resistance measuring range
- 0 to 200 kΩ
- Whether the tester can display a signal as a graph. This reveals faults a standard measurement may miss.Oscilloscope
- Yes
Test functions
- The tester can supply current to components such as a motor or lamp, so you can see whether they work.Component activation
- Yes
- The tester automatically detects whether a point carries positive, earth or nothing. Useful for quick work.Automatic test
- Yes
- Shows whether a connection is positive or negative.Polarity check
- Yes
- Checks whether a diode conducts current in one direction only.Diode test
- Yes
- The tester can pulse injectors to check whether they operate correctly.Injector test
- Yes
- Checks whether a relay switches correctly.Relay test
- Yes
Display and controls
- The screen size, measured corner to corner. A larger screen is easier to read.Screen diagonal
- 2.4 inch
- The number of pixels on the screen. More pixels give a sharper image.Screen resolution
- 320 x 240 pixels
- The tester gives a beep or tone, so you do not need to keep looking at the screen.Audible signal
- Yes
- A built-in light to help you see what you are doing in dark areas.Work light
- Yes
Protection
- Which faults the tester protects itself and the vehicle against. This prevents damage from incorrect connection.Protections
- Overcurrent
- Short circuit
Dimensions and weight
- The length of the test cable. A long cable also allows you to reach the rear of a vehicle.Cable length
- 6 m
- The temperatures at which you can use the tester, for instance in a cold workshop.Operating temperature
- 0 to 60 °C
- The temperatures at which you can safely store the tester.Storage temperature
- -40 to 70 °C
Other specifications
- Type
- Circuit tester with multimeter and oscilloscope
- Operating voltage
- 9 to 30 V, powered by a 12V or 24V battery
- Voltage
- From 0.1 V
- Current
- 0 to 18 A
- Multimeter
- DC voltage, resistance, diode, current, frequency
- Special tests
- Relay (4/5 pin), injector (4 pulse modes), ground test
- Power off
- 0 to 5 V adjustable
- Other
- Work lamp, online updates, 14 languages
