 
        The king of ACEs, the ACE 400i includes advanced features like Iron Audio, Digital Target ID, and Frequency Adjust to help you dig more treasure and less trash.
| Iron Audio: allows user to hear discriminated iron targets and to alter the mid-tone signal range. | 
| Digital Target ID: 0 to 99 scale offers target information | 
| Higher frequency (10 kHz) provides better sensitivity on low and medium-conductivity targets (i.e. gold, lead) | 
| Adjustable Frequency to help eliminate interference. | 
| Camlocks for better stem stability | 
| Includes Pulse-Width Modulation audio: sharper, more responsive audio. | 
| 22 x 28cm (8.5" x 11") PROformance™ submersible DD searchcoil offers excellent coverage, depth | 
| Enhanced Iron Resolution: 3x the iron resolution of an ACE 250, to help separate good targets from adjacent junk iron | 
| Includes Electronic Pinpointing: precisely locates targets and speeds recovery | 
| Notch Discrimination: Modify discrimination patterns based on what you are seeking. | 
| Five Search Modes (plus Pinpoint) | 
| Eight (8) Sensitivity/Depth adjustments | 
| Coin Depth Indicator determines target depth | 
| Includes revised Target ID legend and Mode/Discrimination patterns to better suit the search needs of international users. | 
| Digital Target ID | YES, 0-99 scale | 
| Iron Audio feature | YES | 
| Adjustable Frequency | YES | 
| Camlocks Included | YES | 
| Target ID Cursor Segments | 12 | 
| Iron Discrimination Segments | 6 | 
| Notch Discrimination | YES | 
| Search Modes | 5 (plus Pinpoint) | 
| Sensitivity/Depth Adjustments | 8 | 
| Electronic Pinpointing | YES | 
| Frequency | 10 kHz | 
| Audio Tone ID Levels | 3 | 
| Standard Searchcoil | 22 x 28cm (8.5" x 11") DD PROformance™ | 
| Length (Adjustable) | 1.016 m - 1.3462 m (40" to 53") | 
| Total Weight | 1.32 kgs (2.9 lbs.) | 
| Batteries | 4 AA (included) | 
| Warranty | 2 Year, Limited Parts/Labor | 

9" x 12" ACE PROformance™ Searchcoil

8.5" x 11" ACE PROformance™ DD Searchcoil

7" x 10" ACE PROformance™ Searchcoil

6.5" x 9" ACE PROformance™ Searchcoil

5" x 8" ACE PROformance™ DD Searchcoil

4.5" Super Sniper™ ACE Searchcoil

9" x 12" Coil Cover

8.5" x 11" DD Coil Cover

7" x 10" Coil Cover

6.5" x 9" Coil Cover

5" x 8" DD Coil Cover

4.5" Coil Cover

ACE Environmental Cover-Up