IS Log

Intrinsically-safe and built for versatility, IS Log is designed to be a cost-effective, multi-purpose data logger. It is compatible with a wide range of sensors, including our SpillSens digital float sensor, ultrasonic level sensors, depth transducers, flood alert sensors and more.

IS Log is battery powered, meaning no mains connection is required for deployment, and as standard, delivers a five-year battery life at typical call-in rates.   

IS Log also benefits from our advanced modem, which is capable of connecting via NBIoT or LTE-M for low-powered data transmission. Where NBIoT is not available, then a 2G fallback is in place to ensure consistent data transfer.  Additionally, a range of specialist antennas is available, providing a variety of options to address locations and deployments where a low signal strength is a factor.


Wide-ranging compatibility, advanced telemetry and our long-life battery cements IS Log as the ideal solution for the remote monitoring of waste water infrastructure.

  • Intrinsically safe: certified intrinsically safe to ATEX/IEC Ex Zone 0
  • Multi-application: compatible with a wide range of sensors including ultrasonic, depth transducers and flood alert
  • Easy software integration: designed for easy integration into third party software applications via DataGate API
  • Telemetry: advanced cellular telemetry options (contact HWM for more information)
  • Flexible alarm modes: including multiple analogue high/low, state high/low and profile alarms
  • Online data viewing: via DataGate and EnviroView - the multi-utility data monitoring system
  • Low maintenance monitoring: typical 5+ years battery life
  • External antennas: supports improved signal strength (contact HWM for more information)
  • Wireless programming: units can be programmed and activated locally through the HWM Deployment app.  Changes to transmitting units can be made remotely
  • Responsive: accelerated dial in on alarm

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HWM-Water Ltd
Ty Coch House
Llantarnam Park Way
Cwmbran, NP44 3AW
T: +44 (0) 1633 489 479 F: +44 (0) 1633 877 857 E: [email protected]
The Queen's Award for Enterprise: Innovation 2017
A Halma company
ISO 9001 ISO 14001 ISO 18001 ISO 27001