3–120V Digital Automotive Circuit Tester Pen
3–120V Digital Automotive Circuit Tester Pen
🛡️ Safe: Fixed probe cap, insulated tip, anti-bend wire guard ECU
📊 Clear LCD: Day-night read, steel probe for tight wiring
🔋 Multi-Volt: 6/12/24V DC, test all car circuit faults
🎒 Portable: Long light spring cord, compact storage
💡 Dual LED: Polarity prompt + digital voltage
⚙️ Easy use: Clip & probe fast testing
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3–120V Digital Automotive Circuit Tester Pen
This tester is super safe with the probe cover, easy to read LCD screen and works great for all my 6-24V vehicle wiring checks!
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Specification
Specification
Product Name: Automotive Test Light
Three measurement ranges available: 3V-70V, 3V-36V, 6V-24V
Handle Material: ABS plastic
Application Scenarios: Mainly used for low-voltage circuit maintenance of automobiles and motorcycles, with a wide selection of styles, factory direct sales and after-sales guarantee provided
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Safe & Secure Checkout
Safe & Secure Checkout
We use state-of-the-art SSL Secure encryption to keep your personal and financial information 100% protected.
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60 Days Return
60 Days Return
To be eligible for a return, please ensure that:
Items are unused, unwashed, undamaged, and in their original packaging with original labels attached.
The customer is responsible for return shipping costs unless the return is due to our error.
Items that do not meet these conditions will not be accepted for return.
Customers may request a return within 60 days of receiving the item, without providing a reason.
To initiate a return, please contact us at info@elarohome.com. Once we receive and inspect the returned item, the refund will be issued to the original payment method.
Shipping fees will be charged at most once per order (including returns).
No restocking fees will be charged for returned items.
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Shipping Costs
Shipping Costs
At Elarohome, we are committed to providing a smooth and reliable shopping experience.
Order Processing Time
Orders are usually processed within 24 business hours after payment confirmation.
- Orders placed on weekends or public holidays will be processed within 1–3 business days.
- Processing time may vary slightly during peak seasons, holidays, or periods of high order volume.
- Some large, customized, or special-handling items may require additional preparation time.
Once your order has been shipped, you will receive a shipping confirmation email with tracking information.
Delivery Time
Total Delivery Time = Processing Time + Shipping Time
Delivery times may vary depending on your location, shipping method, product availability, and carrier conditions.
| Shipping Destinations | Shipping Method | Shipping Charge | Free Standard Shipping |
| US | Standard | $5.99 | Orders over$49 |
| CA/AU | Standard | $5.99 | Orders over$49 |
| DE/FR/IT/ES/NL/NZ/UK | Standard | $5.99 | Orders over$49 |
Please note that delivery times are estimates and may be affected by:
- Customs clearance procedures
- Weather conditions
- Carrier delays
- Public holidays
- High-volume shopping periods (such as Black Friday, Cyber Monday, Christmas, New Year, and other holidays)
We appreciate your patience during these periods and will always do our best to ensure your order arrives as quickly as possible.
Order Tracking
Once your order has shipped, you will receive a confirmation email containing your tracking number.
You could track your package through our Track Your Order page or by using the tracking information provided in your shipping confirmation email.
Please allow a short period for tracking information to update after shipment.
Customs Duties & Taxes
Customers do not need to pay additional customs duties for standard deliveries in most cases.
However, customs regulations vary by country. In rare situations, additional customs fees, taxes, or import charges may be applied by local authorities.
If additional charges occur due to local customs policies, customers may be responsible for these fees.
Address Accuracy & Delivery Issues
Please ensure that your shipping information is complete and accurate before placing your order.
This includes:
- Full name
- Shipping address
- Phone number
- Email address
If an order cannot be delivered due to incorrect or incomplete information provided by the customer, additional shipping costs or reshipping fees may apply.
Please contact our customer service team as soon as possible if you notice an incorrect shipping address after placing your order. We will do our best to assist before shipment.
Lost, Damaged, or Delayed Packages
We carefully inspect and package every order before shipment. However, unexpected issues may occasionally occur during transportation.
If your package arrives damaged, is lost, or experiences an unusual delivery delay, please contact us and our team will assist you with the next steps.
Please provide your order number and any relevant photos or information so we can resolve the issue as quickly as possible.
Contact Us
If you have any questions regarding shipping or delivery, please contact our customer support team:
Email: info@elarohome.com
Unique Integrated Safety Design

Precise & Clear Voltage Reading Function

Safe & Reliable for Vehicle ECUs

Wide Compatibility for 6V/12V/24V DC Systems
User-Friendly Portable Structure

Simple Step-by-Step Operation
- Identify the automotive component to be tested
- Attach the tester’s alligator clip to battery negative terminal or chassis ground
- Touch the probe tip to the circuit’s opposite test pointThe built-in dual-color LED indicates circuit polarity: red light for positive polarity, green light for negative polarity. After connection, the LCD screen will clearly display the exact digital voltage value for straightforward reading.

Our valued customers say
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Does exactly what it says
Picked this up for diagnosing a wiring issue on my truck. Works well across the voltage range and the display is easy to read. Solid tool for the price.
Ashley Turner
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Handy little tester
I'm not a mechanic but I needed something simple to check fuses and circuits at home. This does the job without any fuss. Happy with it.
Rachel Bennett
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Good for the workshop
Been using it for a few weeks now on various vehicles. Accurate readings, comfortable grip, and the build quality feels decent. Would recommend to anyone doing basic electrical diagnostics.
Ryan Mitchell
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Compact and reliable
Fits easily in my toolbox. Used it to trace a short circuit and it saved me a trip to the shop. Does what I need.
Nicole Hayes
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Better than expected
Wasn't sure about the quality at first but it's held up well. Clear readings and easy to use. Good value.
Jason Cooper
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Useful for everyday checks
I use this regularly for checking battery voltage and testing circuits before replacing parts. It's straightforward and reliable. The wide voltage range is a plus — covers pretty much everything I work on.
Derek Sullivan