Most accurate panel voltmeter I have yet found...
https://www.ebay.com/itm/Yellow-5-Digit-DC-0-4-3000-33-000V-Precision-Digital-Volt-meter-Voltage-Panel/162859254849?hash=item25eb2b0441:g:I-IAAOSwfVpYqlwE
Weight: 16g
Display mode: Five 0.36 LED digital tube
update rate: > 3s/time
Physical size: 48 x 29 x 22 mm (L*W* H)
Opening size: 45 x 26 mm (L*W)
Supply voltage: 3.5-30V
Lead wire length: 14 cm?4 lines?
Measurement range: DC 0-4.3000-33.000V
Operation temperature: -10 degrees~65 degrees
Measurement accuracy: (0.3‰+ 2words) {means the table worst case maximum error of less than 10mv normal within error 2mv}
These meters agree with my
Some panel voltmeters and battery monitors I have tested exhibit a TWO TENTHs of a volt DC error. A few folks complain that I am too fussy about accuracy. I wonder if they are the same folks who complain about short battery life :)
