IoT sensors

IoT (Internet of Things) sensors are small, connected devices that collect real-time data on how buildings are used. For facility teams, this means greater visibility of equipment, space and energy performance all from one system. The result: faster response times, better decisions and lower running costs.

Why they matter

  • Smarter maintenance – Detect faults early and reduce downtime

  • Energy savings – Monitor usage and avoid waste

  • Cleaner air – Track CO₂ and humidity to improve workplace health

  • Space insight – See how desks, rooms and zones are really used

  • Better security – Get alerts for unusual activity or access

Common sensor types

  • Occupancy sensors – Track room use and support hybrid working

  • Temperature and humidity sensors – Manage comfort and prevent damp

  • Air quality sensors – Monitor CO₂, VOCs and airborne pollutants

  • Leak detectors – Catch issues early and reduce damage

  • Smart meters – Measure gas, water and electricity in real time

  • Motion and access sensors – Automate lighting and protect secure areas

How they work

IoT sensors connect to building systems like HVAC, lighting and access control. Facility managers use dashboards to view real-time data, set alerts and trigger automated actions like switching off unused lighting or raising maintenance requests automatically.

Challenges to consider

  • Data security – Make sure systems are protected and access is controlled

  • Upfront costs – Start small and scale up as savings come in

  • Legacy systems – Retrofit kits make older buildings sensor-ready