Wireless Data Collection for Geotechnical Instruments

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Whether collecting geotechnical instrument data on-site or remotely, RST Instruments offers two wireless data collection systems: RSTAR and DT Link. Compatible sensor types for both systems include vibrating wire, MEMS, 4-20 mA transmitters, and thermistors.
Both systems are based on the 900 MHZ and 2.4 GHz spread spectrum band (country dependent) with extensive open-country range through use of simple dipole or directional antenna.
RSTAR System (fully automated wireless data collection):
The RSTAR Array Radio Series uses wireless technology to provide automated data acquisition. A complete RSTAR L900 System uses L900 RSTAR Nodes at the sensor level, deployed in a star topology from a continuously active L900 RSTAR Hub, which consists of an L900 RTU interfaced to a FlexDAQ data logger.
The RSTAR system is intended for fully automated scheduled collection and provides remote data access. It uses a fixed central hub with its own data logger, antenna, and power. The range from the sensor node to the hub is up to 14 km.
DT Link System (semi-automated wireless data collection):
The DT Link system is a wireless connection to RST data loggers for quick semi-automated data collection performed on-site. The DT Link system uses a portable hub with laptop connection and host software. The ranges from the sensor node to the hub can be up to 500 m and 800 m.