measure how many a/h im using per day

Yes, there are Amphour meters available. Should read This before using one. They may or may not be accurate.

Ian

Since you specifically want one for measuring different appliances (as opposed to using a solar regulator with inbuilt total Amphour usage etc), then i would recommend the Turnigy Wattmeter for portability.


source: hobbycity.com

With a simple addition of connectors of your choice (anderpole, anderson SB50, cigarette plug and socket, etc) these little units come in very handy. They can be found for under $50, though many sellers are nasty and charge more. :(

It is nice to have a simple device that can measure Amps, Amphours, Watts, Voltage, V(min). I'm off tomorrow on our school holiday trip North and the ability to know the consumption of particular devices is handy.

There are other meters (including those built into some solar regulators) that use a largish shunt to achieve the same outcome. This fella uses a damn small internal shunt still, though all reports indicate that is not of concern contrary to some DC beliefs.

See Here for one such review of them.Mine is set up with the same anderpole connectors. ;) Google for specs.

Probably one of the cheapest wattmeters available though still performs extremely well.

For the whole 12V system, a dedicated solar regulator with Amphours IN and OUT displayed would be used by many.


source: Jaycar MP3129

Hope that helps and gives you another option:) I would take some photos of the wattmeter in use if i wasn't packing (and interneting LOL).

Andrew

aussichef
Some of the better solar regulators have an in-built loggerism that can show information that is useful, but I'm guessing you already have a regulator.

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