PQWT-M400
Depth: 400 Meters
Frequency: Single, Triple, 48frequency
Measurement data unit: electric field component of different frequencies of the earth electromagnetic field ΔVs (mV)
Channel: 8
System: PQWT
LCD: Industrial 7-inch HD touch screen
Units of Measurement: △Vs(mV)
Measurement Range: 0mV－1000mV
Display: LED indicator
A/D conversion: 8-bit 1Msps
Input impedance: ≥10MΩ
Relative humidity: ≤85%
Power consumption: about 1W
Working environment temperature: -20°C ~ +50°C
Power Supply: Battery Model #18650; 3000mAh Rechargeable lithium battery
The PQWT-M400 Mobile Water Detector is a high-performance automatic mapping instrument that uses the Earth’s electromagnetic field to detect underground water resources.
By analyzing variations in electrical conductivity, it identifies aquifers, faults, fractures, and caves across diverse terrains such as plains, hills, and mountains.
This advanced water finder provides real-time geological profiles with one-key operation, no network or registration required.
Designed for efficiency, even beginners can operate it in minutes. Ideal for locating well sites and analyzing geological structures, the PQWT-M400 offers expert remote assistance, automatic mapping, and a two-year warranty for reliable field performance.
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• Proton-precession sensor for absolute total-field measurements
• Rugged, weather-resistant housing for field durability
• Large, readable display with clear numeric and status indicators
• Onboard memory for thousands of readings and time-stamped records
• GPS time/position tagging (optional) and USB/Bluetooth data transfer
• Long-lasting rechargeable battery with field-replaceable pack
Lightweight carry case and mounted tripod/stand options
• Multi-Channel Operation:
Supports simultaneous data acquisition from multiple electrodes, significantly improving survey speed and data accuracy.
• High Power Output:
Delivers strong current injection for deep detection and high-resistivity formations, ensuring reliable data even under challenging ground conditions.
• Intelligent Control System:
Features a microprocessor-based architecture with automatic ranging, polarity switching, and real-time monitoring for safe and efficient operation.
• High Precision Measurement:
Advanced digital filtering and noise reduction technology ensure stable, interference-free signals for accurate subsurface mapping.
• Flexible Configuration:
Compatible with multiple electrode arrays (Wenner, Schlumberger, Dipole-Dipole, etc.) for resistivity and induced polarization (IP) surveys.
• Durable Field Design:
Built with robust casing and weather-resistant components, making it ideal for both field and laboratory use.
Depth 200 Meters
Frequency Single, Triple, 36frequency
Measurement data unit electric field component of different frequencies of the earth electromagnetic field ΔVs (mV)
Channel 6
System PQWT
Units of Measurement △Vs(mV)
Measurement Range 0mV－1500mV
Display LED indicator
A/D conversion 8-bit 1Msps
Input impedance ≥10MΩ
Relative humidity ≤85%
Power consumption about 1W
Working environment temperature -20°C ~ +50°C
Power Supply Battery Model #18650; 3000mAh Rechargeable lithium battery
Depth 100 / 150 / 300 / 500 Meters
Frequency Single, Triple, 36/40/56frequency
Channel 8
System PQWT
LCD Industrial 7-inch HD touch screen
Units of Measurement △Vs(mV)
Measurement Range 0mV－2000mV
Stand-by Time 8-10 hours
Power Supply Battery Model #26650; 3.7V 4000mAh Rechargeable lithium battery
• Wideband Detection (DC–10 kHz): Delivers full-spectrum coverage for shallow and deep subsurface structures.
• High-Precision 32-bit ADC: Achieves crystal-clear signal fidelity with ultra-low noise and distortion.
• Multi-Mode Integration: Seamlessly supports MT, AMT, and CSAMT modes for flexible exploration needs.
• Real-Time Geological Imaging: View resistivity profiles, phase curves, and apparent resistivity instantly on-site.
• Rugged, Field-Ready Design: IP67-rated enclosure withstands harsh weather, dust, and impact.
• Ultra-Low Power Consumption (< 5 W): Ideal for extended field campaigns with minimal energy use.
• Precise Timing Synchronization (≤ 30 ns): Dual GPS and thermostatic crystal clock ensure timing integrity in all conditions.
• High Data Capacity & Fast Transfer: Built-in 64 GB storage with USB, WiFi, and Ethernet connectivity.
Depth 100 / 150 / 300 Meters
Frequency Single, Triple, 36/40/56frequency
Channel 8
System PQWT
LCD Industrial 7-inch HD touch screen
Units of Measurement △Vs(mV)
Measurement Range 0mV－2000mV
Stand-by Time 8-10 hours
Power Supply Battery Model #26650; 3.7V 4000mAh Rechargeable lithium battery
• 8-channel simultaneous measurement for rapid data acquisition
• Wi-Fi enabled for seamless remote control and data transfer
• Expandable electrode capacity – supports up to 112 electrodes with 5m spacing
• Marine and land survey compatibility, ideal for complex terrains and aquatic environments
• Integrated GPS and EarthImager™ software for precise positioning and advanced inversion modeling
• Rugged field-ready design with heavy-duty transport case, stainless steel electrodes, and robust cabling