To be honest I didn't expect much when I bought it. There aren't many reviews for such a Tesla meter, and the design of the product looks like something cheap from China. I'm very glad I made this purchase because it really does everything it promises. Very easy to use right out of the box. Calibration is not required. It measures the magnetic field strength in the range from 0 to 2000 millitesla as described and also shows you the direction of the magnetic field (i.e. north or south). Delivery was fast. The two-day delivery worked well. Overall a great product. Very satisfied, everything worked as described and was shipped within two days as stated.
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