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.
Related Products
• High Measurement Accuracy: It delivers reliable resistivity readings with excellent anti-interference performance, even in complex geological conditions.
• Automatic Data Processing: It is integrated with intelligent system for real-time data analysis, curve plotting, and geological profiling without the need for external computers.
• User-Friendly Operation: It has one-touch control and clear LCD interface simplify field operations, reducing survey time and improving productivity.
• Powerful Performance: It is capable of high-voltage and long-distance measurements, enabling deep exploration up to several hundred meters.
• Durable & Portable Design: Rugged construction and compact build for easy transport and dependable use in diverse environments.
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
• Dual Functionality: Measures both resistivity and induced polarization (IP) with exceptional precision.
• High Power & Depth: Advanced signal processing allows deep penetration and stable readings even in complex terrains.
• Intelligent Design: Automatic data recording, self-calibration, and real-time display simplify field operations.
• User-Friendly Interface: Intuitive touchscreen display and simple menu navigation enhance operational efficiency.
• Reliable Performance: Excellent anti-interference capability ensures accurate measurements in various geological environments.
• Flexible Data Management: Supports USB data export and PC software for data processing, mapping, and reporting.
Depth: 100m/150m/300m/500m
Measuring time: 8-10min
Measurement data unit electric field component of different frequencies of the earth electromagnetic field ΔVs (mV)
Maximum Channels: 18 channels
Display Screen: Industrial 10.1-inch HD touch screen.
A/D conversion: 16-bits 1Msps
Minimum resolution: 0.001mv
Point selection: 1-18 points optional.
Power consumption: about 9W
Working environment temperature: -20°C ~ +50°C
Controller: 32-bit high speed CPU
Standby time: 8h
Cable: 2.5m point pitch, 10m line pitch 54.7m in total length
Electrode: Each comes standard with 22pcs
Host Weight: 1.95kg
• 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.



