Voltmeter ?
I just installed a digital voltmeter, a 5 dollar unit from Amazon. When I first push my momentary switch to turn it on the meter flashes 6.78 then shows the volts. Whats the 6.78?
Forum Discussion
The best way to read voltage is to use a good multi-meter and read the voltage with the electrodes at the "POS" and "NEG" electrodes.
If the meter you purchased will match the readout from the multi-meter when checking at the same time (one check after the other), the meter is okay.
In your case if the meter reads correctly compared to the multi-meter every time pressed after that first time it may be okay for you. I would never trust any meter that acted like that unless they mentioned in the instructions what was going on.
You get what you pay for. Cheap price. Poor quality.
If the meter you purchased will match the readout from the multi-meter when checking at the same time (one check after the other), the meter is okay.
In your case if the meter reads correctly compared to the multi-meter every time pressed after that first time it may be okay for you. I would never trust any meter that acted like that unless they mentioned in the instructions what was going on.
You get what you pay for. Cheap price. Poor quality.
