Special Features
- Geoelectric water and void detector: Determines the ground resistance down to a depth of 250 m (820 ft) and visualizes the measured values in 3D
- Detection depth: With this technology customers found water down to 250 m (820 ft) deep
- Use cases: Water detection, cavity detection, geotechnical engineering
- Operating modes: Active/Passive
- Detectable structures: Water deposits, water-bearing gravel, cavities
Use Cases
Includes:
- 1x Controller incl. charger
- 8x AA battery 1.5 V (rechargable)
- 1x Android Tablet
- 4x Electrode
- 2x Power Cable Drum (Ø 290 mm)
- 2x Voltage Cable Drum (Ø 120 mm)
- 2x Connecting Cable (2 m)
- 1x USB Flash Drive with OKM Visualizer 3D Studio Professional Edition
- 1x Power Pack PP20V3A01
- 1x Power Box incl. charger
- 1x Waterproof and shock-resistant Protector Case
- 1x Quick Start Guide
- OPTIONAL Pre-configured Windows Notebook
- Bonus: One Hour OKM 3D Software Free Training, 1x OKM Power Pack
- 2 Year Limited Warranty
* The actual scope of delivery is subject to technical developments or specific model configurations and can differ from depicted components.
More details
GeoSeeker utilizes a geoelectrical measurement procedure based on Schlumberger to read the apparent resistivity of the ground. Based on that ground resistivity the detector is capable to locate underground water deposits, water-bearing gravel and groundwater level as well as cavities like caves, tunnels, chambers and the like. Thus, the geophysical detector can be deployed as water finder or cavity detector at the same time.
Water Detection with GeoSeeker
Active Scan (Accurate)
In the Active Scan mode, GeoSeeker utilizes two electrodes to inject electrical power into the underground soil. Two additional electrodes are measuring the potential difference (fall of voltage) at specific scan points to calculate the final resistivity value.
This mode is used to detect underground water deposits, hidden caves or even impervious layers and barriers within the underground soil. In active scans, you will be able to define a specific depth range in that you are going to conduct your measurement. So you will define a starting and ending depth between 5 meters (16 feet) and 250 meters (820 feet).
Active Scan (Quick)
This scan mode is a quick version of the Accurate Scan. It is also injecting electrical current into the underground and measuring the potential difference (fall of voltage) to calculate the resistivity of the ground.
Passive Scan
In the Passive Scan mode, the GeoSeeker only utilizes two electrodes to read the natural occurring voltage of the underground (no electrical power is injected into the underground). This mode is used to detect underground flowing water only.
Configure and Conduct Scans via GeoSeeker App
The GeoSeeker application for Android provides simple step-by-step instructions to assist you in completing the measurement. You simply follow these pictured instructions until your measurement has been finished.
Analyze Scans in the App and in Visualizer 3D Studio
After completing the measurement, a 3D representation of the measured values is displayed on the tablet screen. Various color adjustment options allow optimizing the visualization of detected underground water deposits, water-bearing gravel and groundwater level (shown in blue) as well as cavities, caves, tunnels, chambers or impervious layers (shown in reddish colors).
Thanks to the major update of Visualizer 3D Studio in 2023, GeoSeeker measurements can now also be displayed, optimized and analyzed in greater detail in the 3D software. The new render view Volumetric 3D is a major milestone for GeoSeeker users.
Specifications
Voltage Cable Drums (Ø 120 mm)
| Dimensions (H x W x D) | 360 x 290 x 200 mm |
| Weight | 6.5 kg |
| Cable length | 255 m |
| Markers | 15 |
Power Cable Drums (Ø 290 mm)
| Dimensions (H x W x D) | 120 x 120 x 45 mm |
| Weight | 0.65 kg |
| Cable length | 26 m |
| Markers | 25 |
Controller (Receiving Unit)
| Dimensions (H x W x D) | 130 x 270 x 110 mm |
| Weight | 0.6 kg / 2.1 kg (with mounted cable reels and batteries) |
| Sample Rate | 4096 Hz (64 times oversampling of a 512 samples mean value) |
| Operating Time | Minimum 16 hours (charged batteries) |
| Charging Time | 3 h / max. 5 h (empty batteries) |
| CPU | 80 MHz Cortex M3 |
| ADC | 16 bit |
| Communication with Tablet PC | WLAN-Accesspoint, 2.4 GHz band, channel 6, WPA2 |
| Communication with Power Box | 2.4 GHz band, on-demand, proprietary |
| Effective Range | –1400 to +1400 mV |
| Measurement Period per Scan Point | Minimum 16 seconds |
| Power Supply (8 AA Batteries) | 8 – 14 V DC |
| Input (for Charger) | 12 V DC / 1.5 A |
| Input Resistance (Static) | Approx. 12 MΩ |
Power Box (Sending Unit)
| Dimensions (H x W x D) | 230 x 550 x 360 mm |
| Weight | 15.8 kg / 18 kg (with mounted Electrodes) |
| Operating Time | 100 h (min. Power) / 40 h (average Power) / 8 h (max. Power) |
| Charging Time | Max. 8 hours |
| Output | Max. 390 V / 0.5 A / 20 W |
| Communication with Controller | 2.4 GHz band, on-demand, proprietary |
| Input (for Charger) | 24 V DC / 2 A |
| Internal Power Supply | Lead Acid Battery (2 x 12 V, 10 Ah) |
Electrodes
| Dimensions (H x W x D) | 440 x 120 x 35 mm |
| Weight | 0.52 kg |
The technical data are average values. Minor deviations are possible during operation.
Videos
Water Detector for “Aktion Pro Afrika” in Mali
Water detector OKM GeoSeeker was handed over in December 2017 to “Aktion Pro Afrika” – a nonprofit organization – and already provides successful measurement results during the search for underground … Read More
How to Redeem Your Free Gifts 🎁
Once your order is placed, our team will reach out to you via email to see if you’re interested in a complimentary One-Hour OKM 3D Software Training Session. If you’d like to take advantage of this offer, we’ll help you schedule your session at a convenient time.
In the same email, you’ll also be offered a free OKM Power Pack. We’ll ask for your preferred plug type—choose from USB-C, D/C, 3P, or 4P—and we’ll include it with your package.
Need To Find the Right OKM Detector for You? Read Our Complete Guide >> Download
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