The GMZ features Silent Search (no audio threshold sound).

Hear all metal targets. Especially good for prospecting, the GMZ has no iron or trash metal rejection.

The GMZ is lightweight and well-balanced for all-day hunting, 3.3 lbs with Batteries.

Operating at the optimum frequency to detect small, medium, and large gold.

Easy-to-use manual ground rejection system.

Only three controls - Sensitivity knob, Ground Reject knob, and Ground toggle.

Can also be used for prospecting as well as industrial "All Metal" applications where small targets and high sensitivity to all metal types are desired.

Can be used with any White's Goldmaster Series (48 kHz - 50 kHz) accessory search coils.