Is anyone still here?
True Occupancy provides a more dependable occupied / vacant signal during quiet activity.
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BUILDING CONTROL FEATURE
Occupancy-Based Room Automation
Make every room respond to who is there, how many people are present and whether the indoor environment is comfortable.
True Occupancy, People Counting and IAQ data can help lighting and HVAC systems align operation with real room demand instead of fixed schedules alone.
THE ROOM-LEVEL GAP
A schedule knows the time. It does not know the room.
Rooms change throughout the day. A person may be present but still. A meeting can grow from two people to ten. CO₂ can rise before discomfort becomes obvious.
How many people are here?
People Counting adds anonymous headcount and room-use data.
Is the room comfortable?
IAQ sensing shows when ventilation and environmental conditions need attention.
ONE ROOM. CHANGING DEMAND.
See how the same room calls for a different response.
Select a room state to see how occupancy, headcount and IAQ data can support lighting, ventilation and terminal HVAC control.
CURRENT ROOM STATE
> 8 People
High occupancy can trigger an immediate cooling response while elevated CO₂ calls for more fresh air or an alert.
IMMEDIATE COOLING + IAQ RESPONSE
PEOPLE10
OCCUPANCYPresence > 30 s
TEMPERATUREAbove 26°C
COOLINGStart immediately
FAN RESPONSEHigher demand
IAQCO₂ 1,050 ppm
Illustrative room states only. Control logic and priority levels can be configured according to project requirements and BMS strategy. Final setpoints, delays, control stages and HVAC outputs are defined for each project.
THE THREE SIGNALS
Know who is there. Understand demand. Confirm comfort.
VITAL MOVEMENT · MAINTAINED
01 · TRUE OCCUPANCY
Keep the room active when people are still truly present.
Conventional motion detection can lose a person during quiet work, study or a presentation.
True Occupancy recognises breathing-level micro movement, providing a more dependable occupied / vacant signal for lighting and room-control strategies.
01
MacroWalking and entering
02
MicroTyping and small gestures
03
VitalBreathing and chest motion
Maintain comfort while occupied, then return lighting and HVAC to the agreed setback only after vacancy is confirmed.
Explore True Occupancy Detection
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LIVE HEADCOUNT · 4
02 · PEOPLE COUNTING
Control demand by how many people are actually in the room.
A room with two people does not create the same ventilation or cooling demand as a room at full capacity.
Anonymous headcount data can help the BMS or room-control layer adjust fresh-air volume, fan speed and terminal-unit demand more closely to actual use.
Live headcountCurrent occupants by room or zone.
Occupancy rateActual use against intended capacity.
Space-use insightRoom utilisation across the day.
Demand signalSupport staged HVAC responses.
PRIVACY-FRIENDLY OCCUPANCY DATAThe intended route uses anonymous occupancy data without identifying individual occupants.
03 · IAQ & DEMAND-CONTROLLED VENTILATION
Respond to how the room feels, not occupancy alone.
Occupancy explains demand. Indoor air quality confirms whether the environment remains comfortable.
CO₂, temperature, humidity and other available IAQ values can help the control system increase, maintain or reduce ventilation according to actual room conditions.
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MeasureMonitor available IAQ values.
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CompareCheck project-defined targets.
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RespondAdjust fresh-air demand through the control layer.
ILLUSTRATIVE PROJECT LOGICA project may use CO₂ above 1,000 ppm as a trigger to increase ventilation or notify the facility team. Final limits must reflect the room type, local guidance and commissioned sequence of operation.
THREE SIGNALS. ONE ROOM RESPONSE.
Presence tells the system when. Headcount tells it how much. IAQ confirms whether conditions are right.
ROOM
DEMAND
Lighting
Fresh air
Fan speed
FCU / VAV
Alerts & dashboards
Koolmesh provides the available room-level data and integration route. The BMS or local controller applies the agreed logic and response. Available data, writable points and control outputs depend on the selected devices, HVAC system and project configuration.
WHERE ROOM DEMAND CHANGES
Designed for spaces that never stay the same for long.
01
Meeting rooms
A small meeting can become a full room within minutes. Headcount and CO₂ help the control strategy keep pace.
02
Offices
Quiet work should not look like vacancy. True Occupancy helps maintain comfort without extending every hold time.
03
Classrooms
Occupancy and air quality change across every lesson, break and room changeover.
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Healthcare & waiting areas
Changing room use and dwell times need dependable presence and environmental visibility.
COMPATIBLE PRODUCT
Build the sensing and control route around the room.
Select products according to the required data, installation method, HVAC interface and BMS integration route.
True Occupancy Sensors
Reliable presence and micro-motion detection
HLIM01/SLoRaWAN Dual-sense Occupancy Sensor | PIR & Microwave Detection | Micro-Motion SensingVIEW PRODUCT 
HLWM01LoRaWAN Microwave Motion Sensor | Micro-Motion Detection | Wireless Data IntegrationVIEW PRODUCT 
HLIR01LoRaWAN PIR Motion Sensor | Micro-Motion Detection | Wireless Data IntegrationVIEW PRODUCT People Counting Sensor
Anonymous headcount and space-use data
IAQ Sensors
Room-level environmental and air-quality data
FCU Thermostats
Room-level terminal control and BMS integration
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HVC10LoRaWAN FCU Thermostat | 2/4-Pipe Control | Flexible Fan & Valve ControlVIEW PRODUCT 
HVC11Modbus RTU FCU Thermostat | 2/4-Pipe Control | Occupancy-Based ECOVIEW PRODUCT 
HVC12Modbus RTU FCU Thermostat | Full-Colour Touchscreen | 2/4-Pipe ControlVIEW PRODUCT 
HVC13BACnet FCU/DX Thermostat | Multi-System HVAC Control | BMS IntegrationVIEW PRODUCT Exact product availability and integration compatibility must be confirmed during product selection and project review.
START THE CONVERSATION
Make room control respond to real room demand.
Talk to a Hytronik specialist about occupancy sensing, IAQ monitoring, HVAC interfaces, control thresholds and the right integration route for your project.