V/A meter

[VinceAtReal4x4s]

This looks pretty cool and goes to 30v. I have the volt-only version already and its surprisingly accurate, tested against my Fluke meter. Now to figure out a reason to monitor current and what from (under 10A)?

http://www.amazon.com/gp/product/B016XY ... typ_im_1_2

[Jimm391730]

This one is similar, but goes to 100A (with 0.01 amp resolution): http://www.mpja.com/Panel-Meter-Snap-in ... 2403%20ME/
You could probably use this between the batteries and the whole truck, including the starter.

[pcolette]

I picked up this one for voltage only but haven't installed it yet. I did test them though and they work nicely.

http://www.ebay.com/itm/172007695894?_t ... EBIDX%3AIT

[edzz]

I like that it uses an inductive pick-up for the amps.

[audiocontr]

This one is similar, but goes to 100A (with 0.01 amp resolution): http://www.mpja.com/Panel-Meter-Snap-in ... 2403%20ME/
You could probably use this between the batteries and the whole truck, including the starter.

Very nice! could i extend the coil leads without issue?

[Jimm391730]

Oops, wrong link. This one goes to 30Vdc and 100 amps: http://www.mpja.com/Mini-Panel-Meter-Du ... 2063%20ME/

[GRCameron]

I wonder if the meter is smart enough to calculate "negative" power as you would get if you placed the shunt in the circuit directly off the battery? While charging the meter would read (+) current, but when the draw exceeds the alternator's capacity the meter will read (-) current (or when the engine isn't running and lights etc. are on).

[Jimm391730]

I wonder if the meter is smart enough to calculate "negative" power as you would get if you placed the shunt in the circuit directly off the battery?

Many do show negative current (current flow in the other direction) but I am not certain if this one does. I have a ~$60 portable unit that does so.