I have a set of HF electronic calipers I had for about 3 years, and I just tested it with a 1" standard, after zeroing it in, a it measured out to 1.000 !
Most people don't know is that RBCS, Starret's Dial Calipers, Fowler, and others are Chinese made, I think by the same company. They just put their name on it, and mark it up big time. I hate when American companies do that, I think it is ruining there good name, and defrauding the consumer that doesn't know they are buying fake American products.
If you are going to buy Chinese products, buy it with their own label, and buy it cheap......
At least HF is doing that, though some of their products are bad, I had a plastic deburring tool from them that broke in 3 days. Bought a good Aluminum one, it it will last a lifetime.