The Airnexus™ Sensor Expansion adds up to 16 additional temperature sensing zones to your existing Nexus setup. Designed for large sites where granular environmental monitoring is essential, this module gives you precise, zone-by-zone temperature data across every area of your building — from server rooms and storage areas to individual office zones and retail floors.
Each sensor delivers high-accuracy readings with ±0.3°C NTC temperature probes, ensuring the data you see in your Nexus iQ™ dashboard reflects true conditions on the ground. Every zone appears seamlessly alongside your existing HVAC units, giving you a unified view of temperature performance and system response across your entire site.
Installation is straightforward — the Sensor Expansion connects directly to your existing Nexus controller via a simple wired connection, with no additional cloud gateway required. Need more than 16 zones? Daisy-chain multiple modules together to scale your monitoring to match even the largest multi-zone environments.
16 additional sensor zones — Expand your monitoring coverage across large or complex sites
High accuracy ±0.3°C NTC sensors — Precision temperature readings you can rely on
Connects to existing Nexus controller — No additional gateway or cloud hardware needed
Cloud data via Nexus iQ — All sensor data available in your cloud dashboard in real time
Zone-by-zone tracking — Individual temperature monitoring for every connected zone
Easy daisy-chain installation — Link multiple modules together for unlimited scalability
| Model | Universal Expansion 16 |
| Inputs | 16 universal inputs (12-bit ADC, NTC / 0–10V) |
| Outputs | 6 relay outputs (10A) |
| Compatibility | AirNexus discrete temperature sensors (NTC) |
| Connection | Two-wire bus cable to AirNexus VRV Controller |
| Power | 24VDC 0.5A ±5% |
| Warranty | Lifetime with active Nexus iQ subscription, or 24 months standard |
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