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Time Domain Reflectometry (TDR)

GeoNet LoRa® TDR Data Logger | 8910-TDR

  • Model 8910-TDR Data Logger, for use with Model TDR-CBL cable.
  • Model 8910-TDR Data Logger, Pigtail and TDR-CBL cable lengths, and cables connected.
SKU:
8910-TDR

The GeoNet 8910 Series is an integrated, wireless data acquisition system and hosted data platform that utilizes LoRa radio technology. The system can also operate using the LoRaWAN® protocol for use with LoRaWAN third-party gateways. The system comprises a gateway and subordinate data loggers for efficient collection of sensor data, from many points, and is well-suited for geographically complex locations where wired infrastructure would be costly, or impossible, to install and difficult to maintain.

The Model 8910-TDR is a GeoNet Wireless LoRa® Data Logger, designed for use with Time Domain Reflectometry Cable. A TDR system is ideal for monitoring slope stability by detecting ground movement, along potential slip surfaces, when the slope deforms and the cable bends or shears causing measurable reflections in the TDR signal.

A Cellular Gateway¹ controls the network, collects all sensor data from any data loggers deployed, and provides seamless and secure cloud integration via the Internet and GEOKON OpenAPI. The GEOKON OpenAPI is easy-to-use and allows users to activate data loggers, change settings, configure sensor channels, and view current data logger status. Industry leading data visualization software or the no-cost GEOKON Agent Software can be used with GEOKON OpenAPI for data viewing and reporting. GEOKON Desktop is for direct PC connection, and is used to configure, update, and interact with the GeoNet 8910 Series Data Loggers.

In addition, Solar Panels of various wattages are available to facilitate continuous operation in remote locations.

¹GeoNet Cellular Gateways are compatible with all major networks except Verizon.

Specifications

Range¹
Up to 20 km in rural open areas with line of sight
Up to 5 km in urban areas
Radio Technology
LoRa®/LoRaWAN®
Radio Frequency, ISM Band
868-928 MHz (user selectable masking by region)
Power Supply
Internal sealed lead acid battery pack, 4V, 10 Ah/5-24V external
Operating Temperature²
−20 °C to +70 °C
Dimensions
Please refer to the product instruction manual.

¹Outdoor, clear line-of-sight. Depends on operating frequency.

²Operating temperature range varies by power source. Lithium batteries will not charge below 0 °C.

Please Note: GEOKON maintains an ongoing policy of design review and reserves the right to amend products and specifications without notice. Various instruments are discontinued over time and replaced with new, updated models.

The LoRa® Mark is a trademark of Semtech Corporation or its subsidiaries. LoRaWAN® is a registered trademark of the LoRa Alliance®. All other trademarks are the property of their respective owners.

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