When or why do we require an (RTU) Remote Telemetry/Terminal Unit ?.... RTU's are used in applications where we have a requirement to connect sensors to measure, monitor, collect data and relay the information to a central point from the remote location/site that is usually unattended by any personnel. Alarms and data from the ruggedized electronic equipment are then transmitted reliably and securely to a master system such as a Supervisory Control and Data Acquisition (SCADA) System via an industrial protocol such as Modbus or DNP3 for example over ethernet or other radio media such as our Trio Radios. The RTU may also have have a programmable control functionality via local inputs and outputs for basic control at the remote location. Check out the link below for more information on our latest SCADAPack product.