🔧 Power up your diagnostics with precision and reach — don’t get left in the dark!
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 sharp stainless steel probe, a highly accurate backlit digital display with ±0.2V precision, and a 140-inch flexible PU spring wire, it offers durability, safety, and extended reach. Ideal for mechanics, electricians, and DIY enthusiasts, this tester simplifies troubleshooting across vehicles and solar systems, backed by strong customer ratings and trusted quality.











| ASIN | B07PX16XDX |
| Best Sellers Rank | #2,489 in Automotive ( See Top 100 in Automotive ) #8 in Electrical System Tools |
| Brand | JASTIND |
| Brand Name | JASTIND |
| Color | Blue, Clear |
| Customer Reviews | 4.6 out of 5 stars 6,263 Reviews |
| Item Weight | 140 Grams |
| Manufacturer | JASTIND |
| Measurement Type | Voltmeter |
| Min. Operating Voltage | 3 Volts |
| Minimum Operating Voltage | 3 Volts |
| Model | 13 |
| Power Source | Battery Powered |
| Specification Met | NIST, UL |
| Style | Electronic |
| Style Name | Electronic |
| UPC | 682698800003 |
U**E
Great tool in quality of build, use and value!
Great quality and feel in your hand. Cord may seem like it's really long, but being coiled up.....it's not. The tip of the probe is super sharp and can easily cut you if you are not careful, but hey....it has it's purpose and does it well.
R**D
Game changer
Great product. Helped me troubleshoot my ATV much easier than using my multi meter the voltage readout instead of the old style light is a game changer. I also use it checking the batteries on my solar system at my cabin property. Quick and easy.
M**D
high quality
works perfect will buy one for agoft
J**T
An easy to use and see tesg light.
This item works like it should. Its easy to see, has a long cord and sharp point.
J**N
👍👍
Works well, very pleased with quality for the price
J**Y
Very handy and accurate
I just received my order the the quality was better than expected! I tested a couple of 6v batteries from an RV and they tested exactly as my $$multimeter.
R**Y
Pretty tough for the price
Been a great test light for the last 3 years. The connection in the back of the body came loose after 3 years. I just resoldered it and it's still working great.
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)
Trustpilot
2 weeks ago
1 month ago