EMF Meter, handheld digital Tesla meter high precision gauss meter magnetometer surface magnetic field tester - with one meter probe 0-2400mT range - and with N/S function (TD8620-5 Level)

I'm a Biomagnetic Therapist and I use this to make sure my magnets are of the right Gauss to be therapeutic. Reasonably priced.

Using it to check polarity and strength of magnets on my guitar pickups and it does the trick for me.

The meter worked great for about 3months. After 3months the unit still turns on, but displayed a constant reading. Likely the sensor is dead.

Picked this up to work on an electric guitar. 5% accuracy is close enough. The meter is very responsive providing quick readings. The autorange and autozero features keep one from having to fuss with adjusting the settings, one can right to work. The meters big LCD display with backlight is easy to read. It uses a standard 9-Volt battery that is included, not a "19"-Volt battery as listed in one of the product pics. A lifetime technical support and a 2-year warranty is comforting provided the company makes it. Hope they do, this is one nice meter to use. The probes cover needs to be taken off the hall sensor to get the correct calibarated reading. The probe under the cover is just a bare PCB board with the hall sensor at the end, no real support or protection for it when the cover is removed. These boards usually dont bend much before breaking. Keep the cover on when not in use and it should last with care, an avoidance of accidents, and curious young children. After looking at several of these, I feel the price is good for the features, warranty, and how well this works. Glad to have it on the bench.

It came with no battery. Could have saved me some time if this was stated in the description.