Adjustable Threshold: Lets you set the threshold level and frequency in every mode
Thumler's Tumbler rock tumbling pre-polish is used in the third stage of rock tumbling to start to bring out a bright shiny finish
The XP BACKPACK 240 backpack is light and robust
Carry: Secure hold with quick access
Colors: Black
Nokta Invenio Pro Smart Metal Detector and 3D Imaging System (Open Box) gratter-finishing-needles Adjustable Threshold: Lets you setOpen Box Nokta Invenio Pro Smart Metal Detector and 3D Imaging System with System Box, Shaft & Handle, IPTU Sensor, Waterproof DD Search Coil 4035 cm (INV40) & Cover, Waterproof DD Search Coil 5640 cm (INV56), Waterproof DD Search Coil 2818 cm (INV28) & Cover, KOSS Headphones (6. 3 mm Jack), System Box Carrying Case, Spare 9500mAh LiPo Battery, Car Charger, USB Cable, AC Charger, Harness Carrying Belt Bungee Cord, Protective Covers, IPTU Sensor