Metal detectors powered by PP3 battery

PP3

— replaceable batteries of the PP3 type, with a voltage of 9V, have a rectangular shape and a pair of contacts on one of the ends. Available as disposable batteries or rechargeable batteries. This option allows you to quickly replace a dead battery (of course, if you have a spare); and the advantage over similar finger elements is that a Kron for a metal detector usually requires 1 – 2 pcs, and not 6 – 8. On the other hand, such elements are somewhat less common on the market and are also usually not included in the delivery set.