Wireless sensing
LoRaWAN temperature, humidity, leakage, power and dry-contact inputs.
APPLICATION_01 · BUILDINGS
BMS retrofit without replacing your BMS
Modernise an existing BMS without opening up the whole building.
Add wireless sensing, protocol links and clear workflows around the BMS you already have.
At a glance
What the package covers
Protocol bridge
Connect BACnet, Modbus, analogue and I/O signals into one view.
Operational dashboard
See equipment status, alarms, energy trends, reports and work status.
What the solution does
From a field signal to a response you can trust
Retrofit without rewiring
Use wireless sensors where new cable runs would be disruptive, costly or risky.
One equipment view
Combine legacy BMS points and new IoT data in one dashboard.
Alarm to action
Route threshold breaches to the right team, then keep the response record.
Energy intelligence
Track demand, runtime and operating trends to guide practical improvement.
Dashboard view
Show the right status when the team needs it
Set roles, thresholds, locations and escalation rules to match your team. Start with the view below, then adjust.
- •Floor and equipment status
- •Temperature, humidity, leakage and power trends
- •Alarm priority, acknowledgement and escalation
- •Scheduled reports and maintenance follow-up
Operating flow
From measurement to action
01
Sense
Add wireless sensors, meters and bridge IO.
02
Connect
Forward LoRaWAN and legacy protocol data.
03
Visualise
Map equipment, rooms, alarms and trends.
04
Improve
Use reports and workflows to close the loop.
Next step
Book a site assessment
Tell us the building type, floor area, what systems are already installed, and what you need to solve. We will come back with an assessment.
Book a site assessmentFAQ
BMS retrofit FAQ
Can we add wireless sensors to our existing BACnet BMS without replacing it?
Yes. Keep your existing BMS and control logic. Add battery LoRaWAN (or similar) sensors where rewiring would disrupt the building. An edge gateway maps readings to BACnet or Modbus — and MQTT for dashboards — so the building stays in service. Most sites pilot one floor or area before scaling.
What is a hybrid LoRaWAN BMS retrofit, and when does it make sense?
A hybrid retrofit keeps wired control where certainty matters and adds wireless sensing where the fabric cannot be opened. You get one operating view for legacy controllers and new sensors. Typical triggers are IAQ, leak, temperature or occupancy gaps — without a full capital BMS swap. WSmart acts as integrator and software layer, not hardware-only.
How do IAQ sensors connect into a building management system in Hong Kong?
Deploy wireless IAQ sensors; a gateway exposes points to BACnet and/or an MQTT platform. The BMS can then trend and alarm IAQ alongside HVAC points — useful for offices, malls and logistics sites without a full rewire. WSmart’s differentiator is software workflows and a multi-protocol ops layer, not sensors alone.