About our Remote Telemetry Units 

Ovarro (formerly Servelec Technologies) manufactures and distributes three brands (Kingfisher, TBox and Seprol) of remote telemetry units (RTUs) each with its own set of features making them suitable for specific markets, environments and applications.

Our range of RTUs enable the secure automation and management of your network in real-time and provide immediate access to data from your connected assets.

Our RTU solutions have been used for more than 40 years by companies throughout the world to collect, communicate and manage data from their remote assets at the touch of button. Find out more about our remote telemetry units below.


Our Kingfisher RTU platform provides a data monitoring and control solution for the most demanding SCADA applications through to low-power data-logging challenges.

View the Kingfisher range


TBox RTUs are designed for scalability with a compact package for small systems, a modular package for larger systems or ultra-low power products, designed for use remote locations.

View the TBox range


The Seprol range of WITS-certified RTU devices are designed for the UK water industry and provide a reliable and cost-effective remote monitoring and control solution.

View the Seprol range