Katzco Voltage Continuity & Current Tester - 6-12 V DC / 24 V AC Circuit - Heavy Duty -Long Probe Tester W/Indicator Light - 54 Inch Cord For Low Voltage Systems, Cars, Live Wires, Fuses -

Good quality from a reputable company 😀

Used to check continuity on circuits on my vehicle. Would buy again.

Impressed by the length, gauge and material of the cord and overall ruggedness of it. You can use this to check your ignition module by seeing how far the spark will jump from the plug wire, you can check both by distance and light brightness and you cant do that with an led type. These are best device for checking fuses in no time, hook the clip to gnd and on each fuse you will see a little tiny solder bump above each pin, just touch it with the ultra sharp point and watch the light. If your looking fo a blown fuse this is fastest way, go right down the line. I check 20 fuses in under 1 min. I've dropped this and banged it several times it wont break. Theres valid complaints on the crimping and soldering but com'on this id delivered to your door for 10$, how hard is it to fix a crimp or add some solder? Be careful the metal tip is a home defense weapon, this is hard hard metal and its razor sharp, it will easily cut deep into a finger or go straight thru you on a slip and fall. I have a large knife and gun collection but I ground down the tip for safety reason, Im sure you can put it right thru the hood or door/fenders on your car. Use it aw well to gnd othe light bulbs or coils, this can work just like a switch all the time and led types have problems doing that.

If you have something draining the battery in an old car, use this. Disconnect the ground and connect this to the battery and ground. If something is drawing power, this now lights up. Then pull out fuses until whatever is running stops lighting up this sensitive light.

First of all this tester works very well; better than I expected. It is great for checking continuity but can also be used to find shorts in a wiring circuit. It is great for troubleshooting problems and will be helpful when building wiring harnesses or adding to existing circuits. I really like the sharpened tip that can pierce wire covering when needed, or use to back-probe a connector.Second, the quality is better than expected. The wire cable and alligator clip are substantial and the see-thru handle is nice and thick. It even has a good strain-relief spring on the back end where the wire cable exits the handle. It reminds me of tools built 50 years ago when companies expected their products to last for decades. If it comes from China, it would really surprise me!

This is not a continuity tester, only a live circuit tester. The description says "self-powered" which is what you need to test continuity (puts electricity from the on-board battery into the wire thru the probe, and if wherever you have the clip attached to sees the current, the light comes on, thus telling you the circuit is continuous). I've always wondered why hasn't anyone made both voltage and current testers into the same tool, and I thought this was going to be it. As a voltage tester, it's high quality and built well, it's just misrepresented