REMS™ Remote Erosion Monitoring System – Model 3108-REMS

Risk reduction through early warning. A network of embedded REMS Beacons provides early detection of erosion with automated notifications to key personnel.

Internal erosion damage is one of the major risks for earthen levees that may lead to failure. During high water events, levee erosion can take place at or below the water surface. Even if a levee is being patrolled during an event, unseen erosion can be threatening the levee’s structural integrity.

The Remote Erosion Monitoring System (REMS) provides advance warning that erosion has taken place before the water recedes. This early warning can provide time to fight the problem immediately where possible, warn emergency managers and when appropriate, evacuate citizens that are at risk behind the levee.




Contrail for Remote Erosion Monitoring for Levees REMS Beacon for Levee Erosion Monitoring REMS Gateway

Remote Erosion Monitoring System (REMS) comprises

  • Model 3108-00 REMS Beacons
  • Model 3108-01 REMS Cellular Gateway Receivers
  • REMS 24×7 Remote Monitoring via Contrail® cloud-based software

Model 3108-00 REMS Beacon

The Model 3108-00 Erosion Beacon is buried in a riverbank, or levee, in areas that are of concern for potential erosion that could negatively affect the structural integrity of the levee.

The Beacon is in sleep mode while buried and if erosion does release the beacon into the flow of the river, it immediately begins transmitting an identification signal every 15 seconds. The signal is picked up by a 3108-01 Cellular Gateway and the signal is passed on to Contrail® cloud-hosted software. All Beacon IDs are entered in the Contrail® REMS database with their precise location and depth. When a signal is received from a transmitting Beacon, text and/or e-mail alarms are sent to agency personnel informing them of the erosion event location.

The Model 3108-00H Heartbeat Beacon is located at a Gateway site. It continuously transmits every 15 minutes. These messages are logged in Contrail and provide verification that the Gateway and communication path are operational. Missing heartbeat reports are an indication that there is a problem that needs investigation.

Model 3108-01 REMS Cellular Gateway

The Model 3108-01 is a complete packaged Cellular Gateway Station for REMS (Remote Erosion Monitoring System) for levees. The Gateway Station is designed to be mounted on a pole and is solar-powered so that it can be mounted wherever it is needed without the need to run power to it.

The Gateway itself is certified IP67 and can resist the harshest environmental factors including moisture, dust, wind, rain, snow, and extreme heat in virtually any environment. The enhanced IP67 solution can support thousands of REMS Beacons featuring two-way encrypted communications with the Beacons. The Gateway passes all beacon data on to Contrail® cloud-hosted monitoring software.

The number of REMS Gateways required for a system is dependent upon the dispersion of REMS Beacons installed. Once erosion releases the Beacons into the river, the transmitted signals from the Beacons are dependent on LOS (line-of-sight) radio paths, so placement of Gateways should ensure signals are received shortly after the Beacons start transmitting.

Contrail® – REMS Data Center 24×7 Monitoring

Contrail cloud-based software is entirely web-accessible and enables unlimited users and administrators to access REMS securely from any device—desktop, smart phone, or tablet. Users can track erosion by viewing each REMS Beacon site status on high-resolution maps and can drill-down to investigate further, including: Gateway status, site details, images, and more.

Advanced alarm management enables highly customizable user-defined alarm rules and messaging features that can support EAPs (emergency action plans). Automated notifications via e-mail and SMS, or text, can be tailored specifically to varying user-group needs, e.g., different messages can be sent to different personnel depending upon their role (maintenance vs. emergency response)..



Specification Model 3108-01 REMS Cellular Gateway
Enclosure Aluminum, Handle with keyed lock
Dimensions 26 x 17 x 16 inches (66.04 x 30.48 x 40.64 cm)
Mounting Brackets included for mounting to 4-inch (10.16 cm) pole
Power 12V, 500 mA
Solar Panel 90 Watt with mounting bracket
Battery Two 100 Amp Hour batteries
Cellular Service GPRS, Verizon (cell service billed separately)


Specification Model 3108-00 REMS Beacon
Housing Schedule 40 PVC
Dimensions 2 x 12 inches (5.08 x 30.48 cm)
Power Two 8.5 Am Hour Thionyl Chloride Lithium Batteries Li/SOCl₂
Life Expectancy > 10 Years
RF Frequency 915 MHz
Communication Encrypted, two-way

Ordering Guide

Part Number Description
Model 3108-REMS REMS™ – Remote Erosion Monitoring System, comprising:
– Model 3108-00 REMS Beacon
– Model 3108-01 REMS Cellular Gateway
– Contrail® Software Subscription


Contact us to discuss your erosion monitoring application.




Contact us to discuss your erosion monitoring application.