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This 2PCS Heavy Duty Automotive Circuit Tester features a robust ABS body and a sharp steel probe designed for piercing wires in tight spaces. It supports a wide 6-24V range, making it ideal for vehicle electrical systems, batteries, and wiring diagnostics. With 135-inch spring test leads and a large alligator clip, it offers easy one-handed use. The kit includes a replacement indicator bulb and spring, ensuring long-term reliability backed by responsive customer service.






| ASIN | B07NTGYC9R |
| Best Sellers Rank | #12,964 in Automotive ( See Top 100 in Automotive ) #26 in Electrical System Tools |
| Brand | JASTIND |
| Brand Name | JASTIND |
| Color | Red |
| Compatible Devices | Vehicles with 6-24V electrical systems |
| Customer Reviews | 4.6 out of 5 stars 4,525 Reviews |
| Item Weight | 0.39 Kilograms |
| Manufacturer | JASTIND |
| Measurement Type | Voltmeter |
| Min. Operating Voltage | 6 Volts (DC) |
| Minimum Operating Voltage | 6 Volts (DC) |
| Power Source | Corded Electric |
| Style | Electronic |
| Style Name | Electronic |
| UPC | 682698799994 |
T**M
Great test light for a reasonable price.
Just as good as the expensive brands. I like the clip, it clips in small spaces and has a long enough cord to reach about anywhere on your car, within reason of course. The light is bright and easy to see.
L**.
Handy tool
I finally got to use this tester. I am disabled, my left side doesn't work well after I had a stroke. My arm doesn't work any and I can only pick up my leg maybe 3 inches. I was able to use this tester easily, it worked very well and is made very well also. This tool could very well work in a shop environment!
A**N
Great quality
an essential tool for anyone working with vehicle electrical systems. Built to withstand tough conditions, it offers robust performance with features like a durable probe, strong insulation, and a long-lasting battery. It provides quick, accurate readings of voltage, current, and continuity, making it perfect for diagnosing issues in fuses, wiring, and other electrical components. The user-friendly design and bright LED indicators ensure ease of use, even in low-light conditions. Overall, this circuit tester is a reliable and indispensable tool for both professional mechanics and DIY enthusiasts.
M**.
Works well
Good tool
D**T
Best in Value, Flexibility and Cost
This tool has exceeded all of my expectations. However, in the next paragraph, I would like to point out one negative experience to which turned out to become a positive experience. The inside cavity of the handle gives the spring/bulb assembly too much wiggle room in order to manually line up the spring/bulb connection to the center of the pointer/contact point. This step can be both frustrating and time consuming. Solution: Before attempting to insert the bulb/spring assembly. Drop (5) copper BB's down into the handle's cavity. The BB's will flow around the contact cylinder such as ball bearings do on a bike wheel. Since the BB's will be slightly higher in height to the contact. When the bulb hits the BB's they will slightly spread but will also guide the bulb to the center of the contact point and the connection will not move. UPDATE: BB's have proved not to be the best solution. I made a test on several car batteries with bb's in the tester. The tester felt warm in my hand so I pulled out the spring. I barely touched it and it was so hot I had to throw it down. The bb's tend to quickly retain a high degree heat during use as current flows through the tester. Not worth the risk. However, you might be interested in a much better solution as shown here in these photos. You'll see that I removed a plastic cap off of a bible highlighter. Next I cut off the open end of the cap which measures exactly 1/2 inch. Drop it down the handle and you'll have perfect alignment every time. With or without modifications this is still a great tester.
L**L
Super product
I was very impressed with the quality of construction--really nice and functional. I especially like the silicone like flexibility of the coiled cord along with a substantial spring clip. Nicely packaged as well.
J**O
well worth the price and saves time
Easy to learn to use , works great and easy to read with the indicate light , great price and saves so much time from pulling every single fuse ...comes with a back up spring and light . I would recommend this product for every kind of user pro or not
F**D
Quality
Works as expected
J**L
Very nice…
It does its job well….
Trustpilot
1 month ago
3 weeks ago