seriousdetecting.comAnswer
Mar 30, 2026 - 10:02 AM
The ACE 400 features Iron Audio™ technology that lets you hear discriminated iron targets, helping you distinguish valuable finds from junk. It also includes a higher 10 kHz frequency for better sensitivity to small gold jewelry and coins, plus five search modes and adjustable notch discrimination. You'll find it in our mid-range detector collection alongside other popular options.
