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Metal Detector Technical Specification Notes

*Notes on specifications:

Two basic technologies are described here; Induction Balance (IB) and Pulse Induction (PI). Induction balance is often referred to as VLF, or very low frequency. This is a misnomer, as some gold nugget detectors and some coin detectors are not very low frequency units as normally defined. VF = Voice Frequency = 300Hz - 3kHz, VLF = Very Low Frequency = 3 - 30kHz, LF = Low Frequency = 30-300kHz. Most IB gold detectors operate in the Low Frequency Range and quite a few coin detectors operate as low as the Voice Frequency range. Pulse Induction (PI) detectors operate over hundreds of frequencies employing a totally different technology than IB detectors but can be best imagined from an operational standpoint as Low Frequency detectors