Test Light Automotive 3-48V Digital LED Circuit Tester, Auto Light Tester with Voltage Display, Electric Tester Pen with Voltmeter and Probe for Checking Car Truck Motorcycle Fuses & Battery Voltage
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Extended holiday returns
FREE refund/replacement until Jan 31, 2026 Learn more
FREE refund/replacement until Jan 31, 2026 Learn more
This item's return window has been extended for the holiday season: FREE refund/replacement until Jan 31, 2026
To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
Availability:
Only 10 left in stock, order soon!
Arrives
Wednesday, Dec 3
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Size: 3V-48V
Features
- Clear Digital Display & Readouts: A highly clear LED digital backlit display designed for voltage readings, 0.1V resolution with 0.2V accuracy gives you clearly visible digital readouts, show you the voltage number easily & quickly. Besides, Our voltage tester with lighting function is suitable for night time testing job. Please rest assured to use it whether it's day or night.
- Wide Rage of Use: This automotive voltage tester with 3-48V DC voltage testing range, used to detect power, ground and find shorts & damages in wires. Quickly check automotive headlights, taillights, turn signal circuits, faulty sockets, fuse connections and more, will save your time and speed up the job, perfect for automotive use.
- Safe Operation & Burn-resistant: Heavy duty electric test pen adopts ergonomic handle for better grip, circuit board with line protection function for safer operation and burn-resistant, high quality plastic ABS body with higher transparency, which is safe, durable and wear-resistant, can be used for long time.
- Easy to Use & Carry: This automotive circuit tester is easy to use, just plug and play, which is commonly used by electricians, mechanics and DIY enthusiasts, making them an essential tool in electrical troubleshooting. Its lightweight and easy to carry, will not take up much space in your toolbox or storage area, convenient to take it with you when you drive out.
- Detectable Positive & Negative: Car test light panel has a dual color red & green light to detect the positive & negative poles of the circuit. Attaching the large size alligator clip either to negative or positive ground, while using the long probe to touch another side. Then signal lights will indicate the polarity: Red for positive indicating the reading / Green for negative without the readouts.
Brand: WINAMOO
Power Source: Corded Electric
Color: Red, Green
Min. Operating Voltage: 3 Volts
Measurement Type: Voltmeter
Package Dimensions : 10.91 x 4.06 x 1.26 inches; 4.16 ounces
Item model number : WITL101A0999
Date First Available : May 12, 2023
Manufacturer : WINAMOO
Best Sellers Rank: #20,369 in Tools & Home Improvement (See Top 100 in Tools & Home Improvement) #36 in Circuit Testers
#36 in Circuit Testers:
Customer Reviews: 4.6 4.6 out of 5 stars 588 ratings
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Wednesday, Dec 3
Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
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- Afterpay Financing
- PayTomorrow Financing
- Financing through Apple Pay
Learn more about financing & leasing here.
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Top Amazon Reviews
Size: 3V-120V
For $10, this test light is excellent. I used it on my car to check some voltage and fuses, and its readings were consistent with my multimeter. I can't comment on its long-term durability yet, but so far, it has been a worthwhile purchase.
Reviewed in the United States on September 21, 2025 by J Thomas
Size: 3V-80V
This tester works very nice and I am actually looking forward to using it for an electrical issue. I tested it out on a 12 volt battery and it worked great. It was pretty cool to see the digital display when I used it on the battery. Thanks.
Reviewed in the United States on November 9, 2025 by Tuan nguyen
Size: 3V-80V
This works very well. Helps to quickly check voltage with one hand in situations where you can’t use two hands on multimeter leads.
Reviewed in the United States on November 3, 2025 by E Rogers
Size: 3V-80V
Not the highest quality but functional for the price. Excellent for occasional use by the novice DIYer.
Reviewed in the United States on June 14, 2025 by DeeAnna Shelley
Size: 3V-120V
Needed a cheap easy to use tool. This feels well made for the price. I am pleased with this.
Reviewed in the United States on November 11, 2025 by CG246
Size: 3V-80V
Good quality and accuracy. Long enough cord to use without having to search all over for a really close ground
Reviewed in the United States on November 9, 2025 by David Schroeder Jr.
Size: 3V-80V
Perfect for a boat. 12 volt 24 volt 36 volt up to 80. Helped fix a ground problem immediately. Showing low voltage A must have.
Reviewed in the United States on October 20, 2025 by LRDHAWKEYE
Size: 3V-80V
Bought as a present, he had just bought another, but he liked this one SO much better. He had no idea how much he would like the digital readout, and the more accurate readings he could get. He highly recommends.
Reviewed in the United States on September 10, 2025 by Charlotte B.