AUTOOL BT210 Automotive Circuit Tester
The AUTOOL BT210 Circuit Tester is a compact electrical testing probe designed for fast inspection of 9–30V automotive circuits.
It combines voltage measurement, polarity detection, continuity testing and temperature measurement in one portable tool. The sharp testing probe helps technicians reach wiring terminals, connectors, fuse boxes and other electrical test points.
Main Features
- Four electrical testing functions in one tool
- Measures voltage in compatible 9–30V systems
- Detects positive and negative circuit polarity
- Tests circuit continuity
- Measures temperature
- Clear digital display
- Fast response and simple operation
- Sharp probe for accessing connectors and wiring
- Compact and lightweight design
- Suitable for workshops, roadside inspections and DIY repairs
Four Testing Functions
Voltage Test
Measures electrical voltage within the supported range, helping technicians inspect:
- Vehicle batteries
- Charging circuits
- Fuse boxes
- Switches
- Connectors
- Sensors
- Lighting circuits
- Power and ground wiring
Polarity Test
Identifies the polarity of the tested circuit.
The colored indicators help distinguish between positive and negative connections, making it easier to locate power and ground points.
Continuity Test
Checks whether a wire, fuse, switch or electrical connection has continuity.
This function can help locate:
- Broken wires
- Blown fuses
- Open circuits
- Poor electrical connections
- Damaged switches
Always disconnect circuit power before carrying out a continuity test.
Temperature Test
Measures the temperature around the probe’s sensing area, providing an additional reference during electrical and maintenance inspections.
Supported Electrical Systems
The AUTOOL BT210 is designed for compatible 9–30V DC automotive electrical systems, including many:
- Passenger cars
- Motorcycles
- Vans
- Light trucks
- Commercial vehicles
- ATVs
- Other compatible low-voltage vehicles
Always confirm that the circuit voltage is within the tester’s supported range before connecting it.
Technical Specifications
- Brand: AUTOOL
- Model: BT210
- Supported voltage range: 9–30V
- Display type: Digital display
- Functions: Voltage, polarity, continuity and temperature testing
- Approximate cable length: 1.1 metres
- Application: Automotive electrical-system inspection
How to Use
- Confirm that the circuit voltage is within the tester’s supported range.
- Connect the tester’s clip according to the required test procedure.
- Select the appropriate testing function.
- Touch the probe to the electrical test point.
- Read the measurement or polarity indication on the tester.
- Disconnect the tester safely after completing the inspection.
Typical Applications
- Checking battery voltage
- Testing fuses and fuse boxes
- Identifying positive and negative wires
- Checking switches and connectors
- Locating open circuits
- Testing wire continuity
- Inspecting lighting circuits
- Checking automotive electrical components
- Supporting basic vehicle electrical troubleshooting
Important Safety Information
- Use the tester only within its specified voltage range.
- Do not connect it to household AC mains electricity.
- Confirm circuit polarity before testing.
- Disconnect electrical power before continuity testing.
- Do not use the tester on damaged or exposed high-voltage wiring.
- Keep the probe away from fuel, moving components and hot exhaust parts.
- Do not puncture sensitive communication wires unless the correct testing procedure is known.
- Avoid applying battery voltage to ECU signal, CAN Bus, LIN Bus, airbag or sensor circuits.
- This tester is not suitable for electric or hybrid vehicle high-voltage systems.
Important Notice
The AUTOOL BT210 is primarily a measuring and circuit-inspection probe. It should not be advertised as an OBD2 diagnostic scanner or as a tool for powering and activating every vehicle component.
Electronic control modules and communication circuits can be damaged by incorrect testing. Always consult the vehicle wiring diagram before probing an unfamiliar circuit.
Package Includes
- 1 × AUTOOL BT210 Circuit Tester
- 1 × Connection cable and clip
- 1 × User Manual
Package contents may vary according to the supplied set.
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