Key benefits Detects very low magnetic fields: 0 to 20+ milliGauss range allows measurement of ambient and stray magnetic fields with precision. Wide frequency coverage: 30 to 20000 Hz enables monitoring of both static and lowfrequency alternating fields. Portable and easy to use: powered by a single 9V battery for onsite measurements without external power. Supports problem solving: quickly identifies sources of magnetic interference, assisting layout, shielding, and troubleshooting. Suitable for field and lab use: compact handheld design facilitates quick surveys in diverse environments. What sets it apart Broad measurement range and broad frequency response in a compact handheld device. Straightforward operation for rapid field assessments without complex setup. Batterypowered convenience supports onsite work and inspections. Specifications Detection Range: 0 to 20+ milliGauss Detection Frequency: 3020000 Hz Power: 1x 9V battery Form factor: Handheld device Use scenarios Electronics laboratory: quickly locate and identify sources of stray magnetic fields around test benches and sensitive instruments to reduce interference and improve measurement accuracy. Residential or commercial electrical inspections: survey rooms and equipment to understand ambient magnetic field levels around wiring, conduits, and fixtures for safety and layout planning. Manufacturing quality assurance: evaluate shielding effectiveness and confirm consistent magnetic field performance in enclosures and finished products during production/testing.