Specifications Detection Radius: ±8 ft Sensor: Bull-nosed, tapered titanium; usable underwater Sensor Cable: 50 ft standard (30 ft, 100 ft optional); Amphenol® connectors (sold separately) Controls: On/Off, Volume Up/Down, Gain Up/Down, Zero/Plus/Minus, Auto Zero Outputs: Audio frequency pitch, LCD display, bar graph (milligauss), RS-232 PC connection Internal Battery: 12V, 7.2Ah sealed lead acid Battery Life: 72 hrs continuous use; recharges overnight External Power: 12–15V input; cable included Operating Temp: -20°F to 150°F (-29°C to 66°C) Dimensions (Electronics): 16.9" x 10" x 6.5" Dimensions (Sensor): 1.625" x 17.5" (4.13 cm x 44.45 cm) Warranty: 1 year Product Description The SubSurface BHG Bore Hole Gradiometer Kit is designed to detect ferrous metal objects underground by lowering a titanium sensor into bored holes. With a detection radius of ±8 feet, the BHG provides accurate and reliable results, making it ideal for bridge builders, utility companies, and the construction industry. The system consists of a control box with a rechargeable 12V battery, a 50′ sensor cable with Amphenol® connectors (custom lengths available), and a bull-nosed titanium sensor that functions similarly to a magnetic locator and can be used underwater. Features include LCD display with bar graph readout, audio pitch output, and RS-232 connectivity for data logging. With a 72-hour battery life and overnight recharge capability, the BHG is an essential solution for deep utility and infrastructure surveys. In the Box Control Box Bull-nosed titanium sensor Rechargeable Battery ABS Custom Case Instruction Manual
