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Easy to Use
Program Sentinel once in your office or lab. When you reach your land site, simply drop the unit into its tripod — it will begin acquiring data immediately. No cables to connect. No buttons to push. The tripod’s LEDs let you know that the system is working. -
The Sentinel Base Station has been set up and hidden effectively in a variety of locations in the African bush, including the Congo River Delta, and has also been installed on Robben Island near Cape Town. In all settings, the instrument has performed extremely well and yielded data of high value…
Phil Van Den Bossche & Sven Coles. Council for Geoscience -
Intelligent
Sentinel thinks for itself. Upon start-up, it will alert you if you’re in an unsuitable area for readings, and automatically power down until you reactivate it in another location. From there, Sentinel will collect days or weeks of high resolution data (depending on sample rate), independently, on a single battery charge. -
Durable
Sentinel is designed to withstand years of exposure to even the harshest environments. The battery pack and omnidirectional Overhauser sensor are protected by a pressurized housing, made of high-strength fiberglass and coated with impact-absorbing polyurethane. -
High Performance
Sentinel’s sensitivity is state-of-the-art (0.015 nT), far superior to most traditional base station magnetometers, and its power requirement is orders of magnitude lower. Couple this with its enormous one million reading nonvolatile memory and you have an instrument that is capable of collecting months of high resolution total field magnetometer data on a single battery charge. -
Sentinel 2: Coming soon
- Wifi data transfer
- 1000 m depth rating when used underwater
- New folding tripod makes deployment quick & simple
- Half the size & weight of Sentinel 1
- Orange shell for visibility
- 80 hrs battery life when sampling continuously
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Call Us
To discuss whether the Sentinel is the perfect fit for your application, please contact Gina Lopez: gina.lopez@marinemagnetics.com +1 (619) 655-0179
The Land Sentinel comes with:
Sentinel Base Station
Cylinder weight: 14 kgs (30 lbs)
BaseLINK Software for Windows
Interface Cable
86 g (0.19 lbs)
Universal AC Input Battery Charger
227 g (0.5 lbs)
Case
Empty Case: 17.5 kg (38.5 lbs)
Shipping Weight: 29 kg (63.9 lbs)
Land Sentinel Includes
- Electronics module
- Overhauser sensor
| Sentinel 1 Performance | |
|---|---|
| Sensitivity | 0.015 nT |
| Resolution | 0.001 nT |
| Gradient Tolerance | > 10,000 nT/m |
| Range | 18,000 to 120,000 nT |
| External Trigger | by RS-232 |
| Temperature Drift | NONE |
| Dead Zone | NONE |
| Heading Error | NONE |
| Sampling Rates | 1/Minute to 1Hz |
| Communications | RS-232, 9600bps |
| Sentinel 1 Operating Parameters | |
|---|---|
| Magnetometer Cylinder Weight | 14kgs |
| Magnetometer Cylinder Size | 113cm x 13cm dia |
| Docking Base Weight | 5kg |
| Maximum Incline Angle for Deployment in Dockingbase | 40 degrees |
| Magnetometer Cylinder Depth Rating, with Brass Seal Installed | 1000m |
| Operating Temperature | -25C to +60C |
| Storage Temperature | -60C to +70C |
| Communication | Full duplex, 3-wire RS232. 9600bps, 8 data bits, no parity, 1 stop bit |
| Storage Capacity | ten million readings |
| Battery Pack | Gel cell 12V, 7Ah |
| Battery Charge Time | 5 hours 80% charge. 10 hours full charge. Can charge while sampling |