Longwei TVT-322 Dual Channel dual needle AC RMS Milivolt Meter Teardown

This is a teardown of the Longwei TVT-322 Dual Channel dual needle AC RMS Milivolt Meter and show the quality difference between the older vs newer analog millivolt meters.

[@Gordonseries385]

👍 Just purchased one, should be here in two weeks. Thank you for sharing.

[@fredcailloux2526]

Mine was delivered 2 days ago and this millivoltmeter is totally inaccurate! My tests result are already -6% wrong with a 2Vac Sinewave at 1Khz and the spec are bragging 3%. With a variac set at 100V ac both needle show 94V ac.