Quantum VX900

The Vertex Quantum VX900 is built around hardware you physically swing over the ground. Two induction search coils run on Vertex's SFX signal-processing platform: the V10 at 8 × 12 in, which the manufacturer positions for natural gold nuggets, small metallic objects and low-response targets, and the V25 at 12 × 12 in for wider ground coverage and stronger response on medium and large targets. Vertex publishes no numeric depth table for either coil on its official product page, so we give you our own field guidance instead: expect roughly 30 cm on a coin-sized target and around 1.5 m on a large buried mass in cooperative soil, less in heavily mineralised laterite. SFX supplies numeric Target ID values, a Graph Mode signal display, Pinpoint, Iron Reject and a Deep Mode tuned for medium-to-large targets at greater depth — the everyday discrimination and recovery tools that decide whether you dig or walk on. A VX100 pinpointer is included for locating the target inside the hole. Above the coils sits the V35 ASU, a 13 × 17.5 in active sensing unit that Vertex pairs with Live Scan, 3D Ground Imaging and SFX 2D Imaging to build a rotatable subsurface picture with size, shape and depth reporting per target. Everything runs from one control unit with a 5-inch 480 × 800 colour TFT screen, an ARM Cortex-M7 processor and a seven-language interface including Arabic, powered by a detachable 12.6 V / 3500 mAh lithium-ion pack that Vertex rates at over six hours of continuous operation and recharges from a 65 W USB-C PD charger. The package also carries Vertex's RSPU remote-sensing unit with its RMS, ADRI and MDRI modes and a transceiver antenna: Vertex describes RSPU as long-range detection that isolates target frequencies such as gold, silver or cavities, and we list it here as a manufacturer-described feature of the kit. It has not been independently verified, no numeric range is published on Vertex's own product page, and we do not sell the VX900 on it — buy this package for the coils and the imaging sensor, and treat RSPU as an extra mode to explore.