AUTOOL BT250 Automotive Electrical Circuit Tester with LCD Display and Overload Protection

The AUTOOL BT250 is a versatile automotive electrical system tester designed for diagnosing 12V and 24V vehicle circuits quickly and safely. With a clear LCD display, 1.5m power cable, and multiple test modes including AC/DC voltage, resistance, and diode checks, it provides accurate results directly at your fingertips. Built-in overload protection automatically disconnects power if current exceeds 16A, keeping both the tool and your vehicle’s electronics safe.

__
Key Features

• AC/DC Voltage Detection – Measures voltage values up to 65V for fast diagnostics
• Resistance Test Mode – Checks resistance values in circuits for faults and continuity
• Diode Test Mode – Quickly determines diode continuity and working state
• Overload Protection – Auto cut-off when current exceeds 16A
• 1.5m Power Cable – Flexible length for full engine bay coverage
• LCD Display – Easy-to-read results for accurate testing
• Compact & Durable – Ergonomic probe design for long-lasting reliability

__
Use Cases

• Test vehicle electrical circuits for continuity and voltage
• Diagnose 12V/24V car, truck, and motorcycle systems
• Check fuses, relays, and wiring harnesses
• Perform resistance and diode checks on electronic components

__
Technical Specs

• DC Voltage Measurement Range: 0–65V
• AC Voltage Measurement Range: 0–65V
• Resistance Measuring Range: 0–200kΩ
• Rated Current: 1–10A
• Overload Cut-Off: >16A
• Display: LCD Screen
• Power Cable Length: 1.5m
• Probe Tip Length: 42mm
• Main Unit Size: 253mm (H) × 32mm (W)

__
User Manual
Download User Manual

__
What’s in the Box

• 1x AUTOOL BT250 Circuit Tester
• 1x Pair of Alligator Clips (Red & Black)
• 1x User Manual
• 1x Retail Box