Clear Voltage Readings
The LCD display shows voltage readings clearly, so you can diagnose electrical issues accurately without guesswork.
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Why customers love it
Pinpoint Electrical Faults with Confidence
This auto circuit tester pen quickly diagnoses electrical issues in cars, trucks, and other 6V to 24V systems, making fault-finding simple and safe for DIYers and professionals alike.
- Voltage detection range from 5V to 48V for broad compatibility
- LCD display shows voltage readings clearly for accurate diagnosis
- Audible and visual alarms for easy breakpoint detection
- Intelligent recognition of live and neutral wires to avoid mistakes
- Wire conduction function for quick continuity checks
- Ergonomic cone-shaped probe tip for precise testing
Why You'll Love This Tester
Instant Fault Alerts
Audible and visual alarms signal breakpoints immediately, helping you locate wiring problems quickly and safely.
Smart Wire Recognition
Intelligent recognition of live and neutral wires helps you avoid mistakes during testing, even in complex systems.
Low-Light Visibility
Green and red dual-color backlight ensures the display is readable even in dimly lit engine bays or under dashboards.
Specs
The details that matter
Built to last outdoors, season after season.
- Voltage Range
- 5V to 48V
- Compatible Systems
- 6V, 12V, 24V
- Display
- LCD
- Probe Tip
- Ergonomic cone-shaped
- Alarm
- Sound and light
Comparison
Why Choose This Tester
Not all products in this category are built the same.
Feature
SmartPicksWorld
Typical alternative
Display
LCD screen shows voltage readings clearly
Basic LED indicators only
Wire Recognition
Intelligent recognition of live and neutral wires
Manual polarity checking required
Alarm Type
Audible and visual alarms for breakpoint detection
Single beep or no alarm
Backlight
Green and red dual-color backlight for low-light visibility
No backlight
Our worry-free shopping promise
If your order arrives damaged, defective, or not as described, contact us within 14 days and we will make it right with a replacement or refund.
Frequently asked questions
Everything you might want to know before you order.
What voltage range does this circuit tester support?
This tester detects voltage from 5V to 48V, making it compatible with most automotive electrical systems including 6V, 12V, and 24V setups.
How does the tester help identify live and neutral wires?
It features intelligent recognition of live and neutral wires, which helps you avoid mistakes when testing circuits.
What kind of alarms does it provide?
The tester uses both audible and visual (sound and light) alarms to signal breakpoints, making fault detection easy even in noisy environments.
Can I use it in low-light conditions?
Yes, the green and red dual-color backlight ensures the LCD display remains visible in low-light conditions, such as under a dashboard or in a dark engine bay.
Does it support continuity checks?
Yes, the wire conduction function allows for quick continuity checks, helping you verify wiring integrity efficiently.
Shipping & returns
Shipping
- Delivers to United States (based on your selected country/region).
- Estimated delivery: 3–15 business days after dispatch.
- Shipping cost: Free.
Returns
You can request a return within 14 days after delivery. Standard returns have a €4.00 EUR (approximately $4.66 USD) flat-rate return shipping fee, deducted from your refund. Return shipping is free for items that arrived damaged, defective, or incorrect. Items should be unused and in original packaging where possible. Contact us before sending anything back.