GEOSENSE-PI™ GeoSense-PI™ technology analyses and responds to ground signals with great clarity and precision, so you can detect in difficult environments once thought undetectable. It rapidly suppresses unwanted signals via three overlapping feedback systems for superfast detection of even the tiniest gold pieces. Powered by GeoSense™ technology, the GPX 6000® is in tune with you and the earth. GPX 6000 TECH SPECS Search Modes (Ground Types) Difficult (default) | Normal Double-D Modes EMI Cancel (default) | Conductive Ground Cancel Ground Balance Auto | Manual (Quick-Trak) Noise Cancel Automatic (on start-up) | Manual (as needed - 5s duration) Sensitivity Manual (levels 1 — 10) | Auto (level 11) | Auto+ (Level 12) Threshold Tone On, Off Volume 5 Levels Length Extended: 155 cm (61 in) | Collapsed: 67 cm (26.5 in) Weight 2.1 kg (4.6 lb) (with 11" round Monoloop coil) Display Monchrome LCD with backlight Available coils GPX 11™ 11" round Monoloop | GPX 14™ 14" round Double-D | Audio Output Built-in loudspeaker | Wired 3.5 mm (1/8" headphones) | Bluetooth wireless audio (aptX™ Low Latency) Supplied Headphones ML 100 wireless headphones Supplied Batteries Rechargeable Lithium-Ion battery 5833 mAh Battery Runtime 8 hours (approximately) Waterproof Coils: submersible to 1m (3.3 ft) | Detector: splash / rain proof Operating Frequency 1.225 kHz Operating Temperature Range -10°C to +50°C (+14°F to +122°F) Storage Temperature Range -20°C to 70°C (-4°F to 158°F) Key Technologies GeoSense-PI™ | Bluetooth | aptX™ Low Latency