Most accurate in dash voltage meter

[8-point]

Originally Posted by ThreeCW

Here is an economy meter from a site sponsor that many people are happy with.

https://www.cartsunlimited.net/battery-meters.html

Got mine from there years ago from scottyb and I've been satisfied ever since.

[Down South]

I have one of Scotty's meters. It's been doing great for years now.
Mine is wired up on the hot side of the key switch so it is constant on. It doesn't draw enough amperage to worry about draining batteries. Think digital clock running on AA batteries. How long does a clock run on those two small batteries?

The meter is dead nuts on after all these years. I checked it yesterday against a Fluke multimeter.

I have tried the meter on the switched side of the key switch and there is some resistance through the key switch that will give an low error of about .2 volt.