EWS Single Channel Switch-VWT

EWS Single Channel Switch-VWT

EWS’s Single Channel Switch-VWT (Vibrating Wire Telemetry) is a compact, low power, multi-comms data transmitter for single vibrating wire instruments.

It reads one vibrating wire and temperature sensors and transmits frequency and temperature measurements wirelessly to the EWS web portal Orion over either the Iridium Satellite Network or LTE. The data is available for storage, processing and display as well as to export data into client databases via FTP, SFTP, XML, CSV or email.

Interchangeable comms options

Send data via Iridium or LTE.

Remotely change settings

Remotely change settings with two-way communications including via iridium.

Low power consumption

Low power draw with internal battery backup.

Single Channel Switch-VWT


  • Works with all standard VWP sensors
  • No extra converter modules needed to read VW
  • Locally manufactured in Australia
  • Extremely compact and rugged compared to other options
  • Custom enclosure types to suit application such as road gatics and monument enclosures
  • Locally supported
  • Plug and play setup onsite
  • Ideal for short or long-term, unattended deployments
  • Easy to relocate
  • Quick and easy to install
  • Perfect for new and retrofit instrumentation projects
  • Switch and software are supported worldwide and is proven in harsh remote environments


  • Interchangeable comms options; Send data via Iridium or LTE
  • Low power draw with internal battery backup
  • 12-24v external power or direct solar panel input
  • Bluetooth embedded for local app connection and programming
  • Remotely change settings with two-way communications including via iridium
  • Small compact form factor — approx. 115x54x43mm
  • Lightweight — 200g
  • LED’s for external verification/diagnostics
  • Fits in a number of common enclosure types such as road gatics and monument covers
  • Can be Fully potted to provide maximum water ingress protection
  • Auto sweep frequency scanning configuration (450-6000Hz)
  • Auto configured excitation voltage (5v/12v)
  • Automatic data upload directly to Orion web portal
  • Can be fully potted for IP68 rating


Download the Single Channel Switch-VWT specification sheet.

Request a quote

Need more info or ready to discuss your requirements?
EWS Environment - Water - Geotechnical - Data

EWS Australia

PO Box 638
Claremont, 6010
Perth, Western Australia

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