Metal detector for deep searching

Assembled and tested board

ATTENTION: This detector is not suitable for beginners.

This detector work stable with various coil diameter - from 10 cm to 1x1 m 

Only 3 potentiometers

Low reaction for stones, which consists iron and ferrous oxides

You can use it for:

  - Deep searching (with big coil or frame)

  - General purpose metal detector

  - Searching on the beach

  - Searching meteorites

  - Searching gold (nugget)

Characteristics:

Model on New Hobby: NH-173

Principle: Pulse induction

Mode: non-motion

Search coil: You can buy it from the site. Also you can do it yourself (description in the manual).

Sensitivity (with 27 cm coil): 30 cm for small coin, 45 cm for big coin.

Indication: sound (speaker not included)

Low battery indication

Power: 12V

Reverse power protection

Consumption: ~140 mА

Dimensions of PCB: 127 x 91 mm