When you’re shopping for a new meter, be sure to check the label.
If the meter says “Ammeter,” it’s a bad meter.
That’s because the manufacturer doesn’t always label their meters correctly.
You might think that because the ammeter is a thermometer, it should be easy to read, but it’s not.
Most meters are not calibrated properly, so you’ll need to be extra careful to get accurate readings.
Here are the steps you’ll have to take to fix your meter: Look at the label and read the label carefully.
If it says “ammeter,” read the meter’s markings.
If you see a small white arrow pointing up or down the meter, the meter is not calibrated correctly.
If a “1” is in the meter and a “0” is not, the ammeter is not properly calibrated.
If there are two or more small dots that are in a circle, you should be able to tell them apart.
If they are not, you need to calibrate the meter to get an accurate reading.
Check the meter.
If that’s not an issue, you can simply take it to a meter shop or electronics retailer, which can take care of the calibration for you.
If this doesn’t fix the problem, you may want to look into replacing the meter or getting a new one.
This article originally appeared on NBCNews.com