The Sivananda SM 7CA is an ultra-high-sensitivity handheld metal detector engineered for precise contraband interdiction and precious metal loss prevention.

• Make: Sivananda
• Model: SM 7CA
• Sensitivity Benchmarks: 0.1 g test piece at 20 mm; 4 g gold ring at 80 mm; 9.5 g coin at 80 mm; razor knife with plastic handle at 80 mm
• Target Detection: Gold, silver, platinum, brass, copper, mild steel, and stainless steel
• Visual & Audio Alerts: Dual-colour LED indicator (steady green for power ON, transitions to red on target detection) with simultaneous acoustic alarm
• Power Requirements: Operates on two 1.5V dry cells or three 1.2V Ni-Cd rechargeable cells with onboard selector switch
• Power Consumption: 10.4 mA with LED active; 19.4 mA with LED and acoustic alarm active
• Battery Autonomy: Up to 100 hours of continuous operation or several months under intermittent duty
• Housing Material: PVC moulded body
• Controls: Streamlined single-switch operation
• Dimensions: 330 mm (L) x 110 mm (W) x 38 mm (D)
• Total Weight: 374 g