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🔧 Power up your diagnostics with precision and reach!
The Heavy Duty 3-65V Backlit Digital LCD Circuit Tester by JASTIND is a professional-grade electrical testing tool designed for automotive and low voltage DC circuits. Featuring a wide 3-65V testing range, a highly accurate ±0.2V backlit digital display, and a durable acetate fiber body with a stainless steel probe, it offers reliable, safe, and precise diagnostics. Its 140-inch flexible PU spring wire and large alligator clip provide extended reach and ease of use, making it a must-have for professionals and DIYers alike.







| ASIN | B07PX16XDX |
| Best Sellers Rank | #4,784 in Automotive ( See Top 100 in Automotive ) #7 in Electrical System Tools |
| Brand | JASTIND |
| Brand Name | JASTIND |
| Color | Blue, Clear |
| Compatible Devices | Vehicles with 3-65V DC electrical systems |
| Customer Reviews | 4.6 out of 5 stars 6,440 Reviews |
| Item Weight | 140 Grams |
| Manufacturer | JASTIND |
| Measurement Type | Voltmeter |
| Min. Operating Voltage | 3 Volts |
| Minimum Operating Voltage | 3 Volts |
| Model | 13 |
| Part Number | JTCVT-01C |
| Power Source | Battery Powered |
| Specification Met | NIST, UL |
| Style | Electronic |
| Style Name | Electronic |
| UPC | 682698800003 |
| Unit Count | 1.0 Count |
A**Y
Good product
I recently got a 12V test light for checking fuses and electrical circuits, and it has been a really handy tool. It makes it super easy to quickly see if a fuse is getting power without having to guess or pull everything apart. What I really like is how simple and effective it is. You just touch the fuse or circuit, and it clearly shows whether there’s voltage present. It saves a lot of time when diagnosing electrical issues, especially in a truck or car. The build feels solid for a basic diagnostic tool, and the probe is sharp enough to get a good connection without being difficult to use. It’s also compact, so I can keep it in my toolbox or glove compartment without it taking up space. Overall, this is a must have tool if you work on vehicles or just want to quickly check electrical problems. Simple, reliable, and very useful for everyday diagnostics.
A**R
Good buy
Product is good quality and worked as advertised. I liked it especially because it came with some directions unlike some things I have ordered in the past.
M**R
good quality tool
This test tool is well made and seems to work well. the voltage displays accurately and the only downside is that it is not actually a "test light". But I like the tool and would recommend it.
R**I
Decent
Works well and cheap enough to replace when you break or loose it. Ground clamp is cheap but Easy enough to crimp another on when it breaks
M**Y
Fantastic test tool with a nice long cord.
Just to start, I have a small, private 3 bay auto repair shop and I work on a multitude of vehicles. Very nice circuit tester, performs flawlessly every time. Nice long cord really helps out when looking for a bad circuit or short. Connects well, works every time!
J**H
Great test light.
This test light so far has me my expectations the quality is good and seems fairly accurate on voltage readings.
D**R
Great addition to Electrical Tools.
Accurate and easy to use. The digital display was easy to read and the size is great for transporting with other tools. It reads quickly and can be uses in many different ways make it very versatile for a lot of jobs. I thought with the low price it would not be good but I compared it to one of my other testers and it went the distance against one that was triple the price.
B**J
Heavy-Duty Tester I Rely on for DC Troubleshooting
This has become my go-to tester for DC systems because it’s reliable and easy to use. I use it a lot when troubleshooting trailer lights and tracking down issues like a dead battery on my tractor. The backlit digital display is clear and makes readings quick to understand. I really like the clamp on the negative side—it makes setup faster and more secure. The whole tool feels very heavy duty with a solid, commercial-quality fit and finish. . What you may care about: ··• Accuracy and reliability for DC systems (Meets) ··• Usefulness for troubleshooting electrical issues (Meets) ··• Clamp-style negative connection (Meets) ··• Build quality and durability (Meets)
L**E
Bueno
Es muy bueno pero nada más mide pura corriente no detecta tierra
B**U
Blown circuit
The circuit board is blown after testing on the car on first attempt
Trustpilot
5 days ago
2 weeks ago