Accuracy expressed in percentile
PLUS or MINUS "X" numbers in the least significant digit column (that is the far right hand column for non techhie types).
TWELVE VOLTS is the power supply for this PANEL meter. It is not hand-held.
The MEASUREMENT CIRCUIT is an entirely different portion of the meter. It will measure from 0.000 to 33.0 volts.
Absolutely different than standard 12-volt PANEL meters, this one can measure voltage DROP. It is not meant to substitute running around with a 9-volt battery hand held meter, measuring voltage drop.
But it WILL measure voltage DROP between batteries, between battery banks, between bank and inverter, solar panel arrays to 33.0 volts. Voltage drop. Problems with MPPT and PWM controllers.
Panel meters are HARD WIRES. Connections are PERMANENT. Multiple points can be selected using a single pole rotary switch. TELEPHONE WIRE is plenty large enough to carry the few milliamps necessary for sensor connection.
No this PANEL meter is not for everyone. This is much like a person reading an article discussing a 30-year-old single malt Scotch. "Ewwwwww! I don't need it! What in the world would ANYONE want this for?"
Questions regarding the usability of such a PANEL meter are justified. Criticism must have a base in logic, not mere preference.
If anyone thinks their FLUKE meter is as accurate as a 100 MHz Tektronix oscilloscope or a hundred plus dollar array of 10ppm calibration resistors, please let me know.
The issue is over VALUE not superlative based quantification.
