Amp Stereo

I have been a lot of car audio shops that use test lights, and stop using so many that the digital multimeter. Is it really "better" than the other in the search for energy sources?

Absolutely! A test light looks like a screwdriver with a pointed end, and consist of a small bulb and the grounding wire or cable. It works by grounding the lamp, and once it comes into contact with a power source, the circuit and light the lamp completely. This is the easiest way to control the power, becauseThe light comes on, either for power or not, if not a power.

The problem with this type of tests on vehicles today is the complexity of some of the wires inside the dash. If the light test on a complete circuit "hot" wire, basically, we created a small "arc" of electricity that some of the sensitive equipment such as an airbag sensor or relay shortly. I have also seen a shot of installation of airbags in a new BMW M3 through the test leads with a testLight. In most cases, will not cause any harm, but if the costs can not be very high.

I recommend using a digital multimeter to test circuits. They are very accurate and can give many useful information such as voltage, amps and ohms, all important to build a good sound system.

This multimeter to work a little 'different from a light standard of proof. They usually have a battery onboard to power the device, so that they do not pull out forcethe energy source, reducing the tendency to "bow" of the power source. They are generally safer to use on sensitive systems than their colleagues in light of evidence for this reason.

Digital multimeters are a great tool for car audio installers, as they can allow to help the problems in the system. Are also a must during the installation of any other 12-volt car accessories. A test of LED lights for power, but he likes to say, when you get the correct voltage and amps. With a multimeter,You can start the component of reading, the work and the road back until you find the component that does not work properly here.

Multimeter range from about $ 10.00 to over $ 100.00, and depending on the level of work and how you need, you can find a job for you. Are a great investment and save a lot of headaches if the problem of a system.

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