M4T28-BR12SH1

Saved and earned immediately from a lithium battery. Large objects from iron see at a distance already in 3-4 cm. Small by 1 cm. Strange, but the copper wire does not react at all, and took with the expectation to look for the wiring under the plaster. When the wire tried to scan with a cross section of 2.5 mm2, it was stronger than tripled on the carnations, which hold the wire-thick with a match and a length of 3 cm.There was a marriage-3 tracks were cut off, directly on the coil itself. But straight hands, experience and magnifier did their job. Therefore, 4I also noticed that the resistor of the adjustment should be twisted so-first to the left, then slowly to the right until the time, until the device began to barely hear the squeak without having near the metal-here and leave, and if you spin a little more hourly, it will squeak at all power-it's already too much. This is kind of the maximum sensitivity. While i threw it, i think i'll come back later and try to improve something.Delivery days 20, the number was cracked.

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