EWS Well Cap

Data Logger and Transmitter In One

The EWS Well Cap Groundwater Monitoring Station makes it easy to automate measurement of groundwater wells.

EWS’s Groundwater Well Cap leverages the power and reliability of our Switch Data logger family to deliver a cost-effective, self-contained package to easily and effectively monitor groundwater and any other environmental applications.

EWS’s Groundwater Well Cap leverages the power and reliability of our Switch Data logger family to deliver a cost-effective, self-contained package to monitor groundwater and any other environmental applications. Made from extremely robust glass filled nylon with a lockable hasp, the telemetry electronics sit safely within the IP68 top section and can be easily configured via our Bluetooth mobile app.

Hassle-free and quick installation - the Well-Cap is simply connected to the sensor, placed over the monitoring bore and fixed in place with grub screws. Different adaptors allow it flexibility to fit to any bore diameter. Easily gain access to the bore for pump sampling or calibration dips by simply flipping back the lid.

5 Year Battery Life

The EWS Well Cap networks on a single battery, powering Iridium Satellite Network or Cellular connectivity.

Easy Modem Configuration

EWS Well Cap allows for easy swap-out of the modem, enabling the internal Switch to communicate with any network protocol.

Universal Compatibility

EWS Well Cap works with with any and all environmental sensors and mounts on any pipe for excellent value and easy deployment.

Real-time groundwater monitoring via mobile or satellite networks

EWS Well Cap

Unlike other “Down the hole” telemetry products, the EWS Well Cap sits above your bore casing allowing connection of multiple sensors from nested bore scenarios. This saves on equipment outlay and setup.

Connect up to 10 sensors of any brand to the one unit. Other types of “Down the Hole” products only allow for connection of one sensor. Other products sit down the well, restricting access to validation dips or pumping campaigns.

The EWS Well Cap sits above the hole with a custom “dip point” built into the housing. The user simply needs to take off the lid to access their bore hole.

Down the Hole products limit access to the well and reduce the transmission signal whereas EWS Well Cap allows fast secure connection to the Iridium or other network from above the well. 


  • Works with ANY sensor
  • Mounts on ANY pipe
  • Mobile or Satellite communications from the same unit
  • Tamper-proof packaging securing your wells
  • Capable of measuring sensors over SDI-12, 4-20ma, Pulse and Modbus
  • Custom housing colours available
  • Lithium battery for long term reliable operation (3-5 years)
  • FTP/SFTP data to any client database
  • Mounts on any diameter pipe
  • Built-in EWS logger/transmitter
  • IP68 housing for battery/electronics/antenna with screwless access
  • ABS plastic construction UV rated to more than 10 years
  • Optional custom coloured covers for extended UV lifespan
  • Simple design provides easy access to sensors
  • Sensor hanger plate with room to insert electronic tapes or other calibration devices
  • Concealed bolts to fasten the cap to the well casing
  • Compatible with any sensor with SDI-12, Modbus or analogue output
  • Optional solar panel for continuous operation
  • Weight including battery & logger (900 grams)
  • Dimensions: Diameter: 160mm Height: 180mm
  • Internal 12V Lithium Battery (3-5 years life span dependent on transmission rate)


Download the EWS Well Cap specification sheet.

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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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