The PQWT-TC150 operates on the principle of electrical differences in the natural earth magnetic field. This frequency selection system analyzes electromagnetic field changes across multiple frequencies to study underground material variations and solve geological problems. The instrument measures self-potential in millivolts with exceptional precision.

• High Speed & Efficiency: Complete over 8000 meters of profile measurement daily, detecting geological abnormalities at various depths with 10x faster performance than traditional resistivity methods
• Lightweight & Portable: Complete set weighs less than 2kg, utilizing natural electric field signals without heavy power supplies
• Simple Operation: Micro PC-controlled system with intuitive interface - learn operation in 10 minutes, full training completed in 30 minutes
• High Precision: Measurement resolution of 0.001mV with ±2% accuracy, providing stable results matching traditional geo-electrical equipment
• Advanced Anti-Interference: Multiple anti-jamming technologies ensure reliable performance in weak signal areas, urban environments, and high electric interference zones
• Automatic Mapping: One-button automatic mapping after data sampling, eliminating need for computer drawing

• Automatic noise reduction and super anti-jamming capabilities
• User-friendly interactive interface with high-speed CPU control
• Automatic measurement, data storage, and curve drawing
• Automatic data saving after shutdown
• Storage capacity for 999 single band, tri-band, and multi-frequency measurements
• Direct data import to computer for charting
• Rechargeable batteries with electrode detection and power monitoring