Few years ago I had a positive opinion for UNI-T too. It was looking like a company which was different than any Chinese manufacturers with many possibilities of development and improvement. Multimeter series UT60,61 and UT70,71 was not something special but it was an upper class than competitive manufacturers (Mastech etc) Unfortunately UNI-T had a chance to raise further, but as it seems new series UT139 are at lower level than previous models. Maybe Uni -T didn't follow good strategy about development, but follow the easy way of cost reducing. With strategies like this any manufacturer looses its potential, and stays stuck below the middle.