Auto-detecting smart mode
Smart mode automatically detects the measurement type and selects the optimal range for precision.
- Free shipping
- 14-day easy returns
- Secure checkout
- Quality guaranteed
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Why customers love it
Smart circuit testing, bright and effortless
This smart digital circuit tester simplifies automotive electrical diagnostics by automatically measuring AC/DC voltage, polarity, resistance, and continuity—delivering accurate readings in seconds.
- Smart mode auto-detects measurement type and selects the optimal range
- Measures AC/DC voltage, polarity, resistance, and continuity
- Bright green LED backlit display with 0.1V resolution
- Built-in flashlight for dim engine bays and under dashboards
- Flexible 78.7-inch PU spring wire for easy reach and storage
- Large alligator clip enables one-handed operation
Smarter diagnostics, brighter results
Extended voltage coverage
A wide 0.8–100V DC range exceeds standard automotive testers, covering more testing scenarios.
Clear LED display
A bright green LED backlit display with 0.1V resolution stays readable day or night.
Built-in work light
The built-in flashlight illuminates dim engine bays and under-dash areas for easier work.
Specs
The details that matter
Built to last outdoors, season after season.
- Product Type
- Smart Digital Circuit Tester
- Voltage Range
- 0.8–100V DC
- Display
- LED backlit with 0.1V resolution
- Wire Length
- 78.7 inches
- Body Color
- Black, Blue
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 measurements can this circuit tester perform?
This tester measures AC/DC voltage, polarity, resistance, and continuity, covering the key checks for headlights, fuses, and sockets.
What voltage range does the tester support?
It covers a wide 0.8–100V DC range, which exceeds standard automotive testers and suits most car, truck, and motorcycle electrical systems.
How long is the test wire and why does it help?
The flexible 78.7-inch PU spring wire lets you reach distant test points and coils away neatly for storage.
Can I use the tester with one hand?
Yes, the large alligator clip enables one-handed operation, so you can hold the probe and read the display without a second hand.
What safety feature does the probe include?
The thick probe guard adds safety and durability, protecting you during probing in tight or dim areas.
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.