• Temperature sensor
  • Humidity sensor
  • PIR motion sensor
  • Light Sensor
  • Audio occupancy detection
  • Configurable LED ring and audio tone speaker for user feedback.
  • Supports BACnet & MQTT Protocols
  • API via Bluetooth BLE5.0 for custom app development.
  • Dual Ethernet supports daisy-chain (tolerant of power failure)
  • User feedback via speaker and full-color LED ring with customizable audio tones and colours


£289.00 (£346.80 incl. VAT)

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O3 Sensor Hub 2.0

Delta Controls’ award-winning O3 Sensor Hub 2.0 uses industry-leading sensor fusion technology to deliver the most accurate view of an interior space available on the market.

Integrating temperature, humidity, motion, sound, and light sensing in a single device, the sensor hub uses machine learning to provide fast, accurate feedback on the monitored space.

The sensor hub is easy to install and can be configured out of the box with just a smartphone.


With support for BACnet, MQTT, and BLE protocols, the O3 Sensor Hub 2.0 is an open platform IoT device that can integrate with almost any system.

Select models also come with two universal I/O points capable of controlling or accepting inputs from nearby devices—ideal for controlling light ballasts or chilled-beam ceiling valves.


  • Composite temperature, humidity, PIR motion, sound, and light sensors combined in a single device
  • User feedback via speaker and full- color LED ring with customizable audio tones and colors
  • Dual Ethernet connection for daisy- chaining in large spaces; provides pass-through communication even during power outages
  • Configuration via mobile app
  • BLE API for developing custom apps


Passive Infrared Motion Coverage



SKU: TRM240-1 Categories: ,
Temperature SensorsComposite temperature value± 0.5°C (± 1.0°F) typical with calibrationDigital temperature sensor± 0.5°C (± 1.0°F)Infrared temperature sensor± 1.0°C (± 1.8°F) typical
Humidity SensorAccuracy ± 3% for 20% to 80% RH @ 15°C to 30°C (59°F to 86°F)
Motion SensorPassive infrared (PIR) motion sensor Motion sensing range:9.1 m (30 ft) diameter @ 4.6 m (15 ft) mounting height5.5 m (18 ft) diameter @ 2.4 m (8 ft) mounting height
Light Sensor± (6 + 5% reading) lx
Audio Input2 microphones for acoustic occupancy detection
LED RingFull color ring with 12 RGB LEDs
Audio Output1.0 W mono speaker for tones and audio output
ConnectorsRemovable screw-type terminal connectors
Wiring ClassClass 2 / SELV
Power24 VDC (20–28 VDC), 2 W typical, 9 W max (non-2xP) or 10 W max (2xP), Class 2
TechnologyArm® Cortex®-A7 MPU + Cortex-M4 MCU256 DDR3L RAM4 GB eMMC flash memoryReal-time clock (RTC)Supercapacitor power backup for RTC
Communication PortsDual Ethernet (10/100Base-T)
Interfaces and ProtocolsBACnet (BACnet/IP, BACnet/Ethernet)MQTTBLE 5.0
Ambient Rating0°C to 45°C (32°F to 113°F) 10% to 95% RH (non-condensing)
Dimensions180 × 41.5 mm (7.1 × 1.6 in.)
Weight350 g (0.77 lb)
ComplianceCEFCC/ICNCC (in progress)
ListingsC-UL ListedUL 916 Listed