Hong Kong Hospital: Unified Sensor Network for 600-Point IEQ Monitoring
A 28-floor acute-care hospital in Hong Kong required reliable indoor environmental quality (IEQ) monitoring across wards, operating theatres, and laboratories. The previous sensor network drifted, lacked centralized logging, and could not trigger timely alarms during excursions.
Project Background
Infection-control and accreditation standards demanded continuous, auditable temperature, humidity, CO₂, and particulate monitoring at around 600 points. The existing sensors were intermittent and required frequent manual recalibration, leaving gaps in the compliance record.
Our Solution
DNARENS supplied a unified sensor suite — temperature, humidity, CO₂, and PM2.5 — with BACnet/Modbus output, deployed at 600 monitoring points. Highlights:
- Calibrated, replaceable probes for low drift and easy field service
- Configurable alarm thresholds pushed straight into the BMS
- Central logging for audit-ready IEQ history
Sensors were mapped room-by-room and validated against reference meters during commissioning.
Results
- Real-time IEQ visibility across all 600 points from one platform
- 35% faster response to environmental excursions
- Continuous, audit-ready compliance records
- Improved infection-control environment in critical zones
The hospital now uses the same sensor framework as the standard for its upcoming facility expansions.
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