Not a TriMetric, but for $20 might be worth trying out...
Bayite DC 6.5V-100V Digital ammeter voltmeter Amazon suggested this for me and I'm thinking for $20 I might just give it a try. Has very good reviews too.
Forum Discussion
No, I don't think so, voltage sense is also the power supply wires, unless you use a separate external supply, which means a total of six wires instead of just four
You need two wires for the power/voltage sense and two wires for the amp reading
That means 4 wires aka two pairs, minimum
The power used to drive the meter, although minimal, would probably give your solar controller a false reading
you have to pull new wire anyway, so pull a multi wire com cable, instead of one pair, cheap surplus multi twisted pair com cable is an excellent choice for this project
And yes you could have more than one pair of sense wires on a shunt for several meters
But all the wires have to be attached at the shunt,
Not string out at different points on one cable
Please don't confuse the issue
You need two wires for the power/voltage sense and two wires for the amp reading
That means 4 wires aka two pairs, minimum
The power used to drive the meter, although minimal, would probably give your solar controller a false reading
you have to pull new wire anyway, so pull a multi wire com cable, instead of one pair, cheap surplus multi twisted pair com cable is an excellent choice for this project
And yes you could have more than one pair of sense wires on a shunt for several meters
But all the wires have to be attached at the shunt,
Not string out at different points on one cable
Please don't confuse the issue
