A metal detector with the capabilities demanded by advanced users, but provided with preloaded settings which make it ideal for beginners also.
The Alter 71 detector can not only be used as a static detector for very deep low frequency work, but just as effectively as a rapid, dynamic detector for locating small non-ferrous objects using high frequencies.
The flexibility of the detector is enhanced further by the option of dual mode, using the benefits of motion and non-motion mode simultaneously.
- Frequency adjustable between 4.4kHz and 18.4kHz in steps of 0.2kHz
- Automatic Ground Balance
- Proper Ground Balance information
- 7 factory programs + 4 users
- Modes of work: Motion with discrimination, All metal, Dual
- Sensitivity – 90 levels
- Discrimination: range 0-120 or -90 +90
- Notch – 120 notches
- Pinpoint
- Hot rock adjustment
- Reaction speed (ground filters) – 8 levels
- Short signal masking – 7 levels
- Threshold level
- Threshold tone
- Threshold sensitivity (All metal channel)
- VCO
- SAT
- Audio gain
- Iron volume
- 6 factory preset sound profiles + 3 user programmable sound profiles
- ID type (range 0-120 or -90 +90)
- Display information hold time
- ID gain
- Volume
- Backlight
- Built-in wireless audio transmitter
- Weight with batteries (6 AA cells) – 1630 g