SKU: 69308864763

DUOYI Automobile Dual-hole Spark Plug Diagnostic Tester, DUOYI EU Plug

$12.59 $13.99
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  • USA
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Ships within 48 hours · Estimated delivery Aug 8 - Aug 13

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Description

DUOYI Automobile Dual-hole Spark Plug Diagnostic Tester, DUOYI EU Plug1. Power adapter: Input 100 240V AC Output 12V 1A DC 2. Purpose: test spark plug performance and ignition strength 3. Application range: 12V gasoline engine automotive spark plugs 4. The dual hole automotive spark plug tester has two test holes, which can test two spark plugs at the same time. If you suspect that any spark plug is not working properly, you can do a comparative test to make an accurate judgment 5. Test principle: In the automotive


1. Power adapter: Input 100-240V AC / Output 12V 1A DC
2. Purpose: test spark plug performance and ignition strength
3. Application range: 12V gasoline engine automotive spark plugs
4. The dual-hole automotive spark plug tester has two test holes, which can test two spark plugs at the same time. If you suspect that any spark plug is not working properly, you can do a comparative test to make an accurate judgment
5. Test principle: In the automotive ignition system, the high-voltage ignition coil generates a high voltage (more than 10,000 volts), and the spark plug leads it to form a high-voltage ignition coil into the cylinder engine. The spark between the spark plug electrodes ignites the mixture. The detector can distinguish good spark plugs from bad spark plugs according to the intensity of the spark
6. Turn the key switch clockwise to turn on the tester, and the indicator light is green
7. Close the protective cover, insert the adapter into the side socket, and connect the tester to the power supply to turn it on
8. Turn the switch clockwise to adjust the operating frequency between 1000rpm and 6000rpm/min. The higher the frequency setting, the stronger the spark.
9. Dimensions: 145x85x60mm
10. Weight: 354g

Instructions for use of the automotive spark plug tester:
1. Turn off the power before placing the spark plug
2. The spark plug tester is a high-voltage detector. Do not touch the spark plug with your hands during operation to avoid danger

Packing list:
- Spark plug tester x 1
- Power adapter x 1
- User manual (English) x 1


Specification:
Package Weight
One Package Weight 0.40kgs / 0.89lb
One Package Size 10cm * 12cm * 15cm / 3.94inch * 4.72inch * 5.91inch
Qty per Carton 36
Carton Weight 18.00kgs / 39.68lb
Carton Size 64cm * 32cm * 45cm / 25.2inch * 12.6inch * 17.72inch
Loading Container 20GP: 289 cartons * 36 pcs = 10404 pcs
40HQ: 671 cartons * 36 pcs = 24156 pcs

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 69308864763

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4.4 ★★★★★
Based on 12 reviews
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A
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Adrian Graham
West Palm Beach, US
★★★★★ 5
Classy
Size: 9, Color: Black/Black
I like how they give a little elevation but are still casual enough to wear with shorts. I recommend buyers break them in a bit before by wearing them for short periods of time/not a lot of walking prior to wearing all day.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 17, 2025
A
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Ali
Battle Creek, US
★★★★★ 5
La talla exacta.
Size: 8, Color: Black/Black
Exactamente lo que describen.
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Reviewed in the United States on September 21, 2025
N
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Nancy
Los Angeles, US
★★★★★ 5
Comfortable
Size: 9, Color: Black/Black
True to size and comfortable to wear all day.
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Reviewed in the United States on February 12, 2025
O
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Orangesocute
Lake Worth, US
★★★★★ 5
Beautiful purse!
Size: One Size, Color: Vanilla
Wow! I love this purse! It is beautifully made and very good quality. It's the perfect size for holding everything I need without being bulky or too tightly packed. The shoulder strap is the perfect length and does not dig whatsoever. I love anything Lucky Brand and this did not disappoint!
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Reviewed in the United States on January 28, 2026
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Verified Purchase
DruEllen B.
Phoenix, US
★★★★★ 5
Very good quality.
Size: One Size, Color: Vanilla
Love, Very Nice, Thank you
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on August 20, 2025

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