Below are 3 of the best-performing, deep-penetrating groundwater detectors currently available at EMIN for your field survey needs.
Before using specialized equipment, you can refer to the signs of groundwater sources.
1. PQWT-TC150 Automatic Groundwater Detector (Depth 150m)
The PQWT-TC150 is a prime example of a device offering simple operation while providing intuitive stratigraphic data. With a maximum detection depth of 150m, it operates on the principle of measuring changes in the Earth's natural electric field to analyze the underlying geological structure.

- Operational advantages: The strongest point of the PQWT-TC150 is its ability to automatically plot cross-sections directly on the 7-inch touchscreen. Users can clearly observe fault locations, aquifers, or underground rock cavities without the need for complex computer connections.
- Terrain adaptability: The device operates stably across various terrains, from plains to high mountains and river basins, thanks to its sensitive measuring channel system.
Typical technical specifications:
Probe range: 0 - 150m
Display: 7-inch industrial standard digital LCD
Measurement range: 0mV - 2000mV
Channel amplification: Up to 500,000 times
2. PQWT-CL600 Specialized Pipe Leak Detector (6m Depth Range)
Unlike other deep water leak detectors, the PQWT-CL600 focuses on accurately identifying cracks or leaks in underground pipeline systems. This device operates based on analyzing sound waves and vibration frequencies to pinpoint the location of water loss with high detail.

Digital sound processing technology: The device boasts a wide frequency range from 1 to 9000Hz, combined with the ability to amplify sound up to 100 times. This allows operators to clearly hear even the smallest vibrations emanating from cracks in pipes deep underground.
Versatile Operating Modes: The PQWT-CL600 offers four advanced working modes:
- Spectrum Analysis: Identifying sound characteristics.
- Filtering Analysis: Eliminating ambient noise.
- Location Mode: Locating the actual leak point.
- Long-term Mode: Monitoring fluctuations over extended periods.
- Intelligent Data Storage: The device supports direct recording with unlimited capacity. All data is preserved even in the event of a sudden shutdown, allowing for easy verification and analysis after leaving the field.
3. PQWT-TC1200 Specialized Groundwater Explorer (Depth 1500m)
One of the most powerful solutions on the list, designed for ultra-deep exploration or large-scale geological surveys, the PQWT-TC1200 allows users to flexibly customize measurement thresholds according to field conditions, providing detailed data on hidden aquifers deep underground.
Multi-frequency analysis: Unlike conventional models, the TC1200 supports multiple frequency modes (single, three frequencies, and special frequency bands 20/40/56/68). This allows the device to "unearth" each geological layer, clearly distinguishing between water pockets and hard rock structures.
8-channel measurement system: With a large number of measurement channels combined with a 16-bit A/D converter, the instrument is capable of receiving and processing Earth's electric field signals with extremely high detail, minimizing errors when determining drilling locations.
Typical technical specifications:
Flexible measurement depth: 0-600 / 900 / 1500m
Measurement channels: 8 parallel processing channels
Accuracy: 0.001mV
Signal amplification: 0 ~ 500,000 times
Display: 7-inch high-definition digital touchscreen LCD
EMIN - A reputable distributor of groundwater detectors in Vietnam
As a leading supplier of measuring equipment, EMIN provides customers with absolute peace of mind regarding product quality. All groundwater detectors at EMIN are directly imported, ensuring complete documentation and certificates of origin and quality.
When choosing equipment from EMIN, you will receive:
- In-stock items: Saving waiting time, equipment is ready for immediate delivery to urgent projects.
- Dedicated technical support: Our team of knowledgeable engineers will guide you on how to operate the machine to obtain the most objective results in the field.
- Transparent warranty policy: All products are covered by the manufacturer's official warranty.
In addition to using instruments, experience in Manual groundwater detection and dowsing methods is also available.
For detailed advice on the appropriate instrument for the specific geological conditions of your survey area, please contact EMIN's support team today.





