Smart Building IoT Solutions for Offices, Hospitals and Malls

Wireless Sensors, Modbus Converters and Controllers That Work With the Building Management System (BMS) You Already Run

Smart Building IoT Solutions for Offices, Hospitals and Malls

Air quality, people counting, washrooms, water tanks and sub-metering on one wireless network, without rewiring a finished building

Designed and manufactured in Pune on open standards:
LoRaWAN, Modbus and MQTT, with the data in your BMS or dashboard

IAQ, Occupancy & EnergyCO₂ · temperature · people count · kWh
LoRaWAN · Wi-Fi · BLEOne indoor gateway, many floors
Multi-Year BatteryWall sensors with no cable to run
Open BMS IntegrationModbus · MQTT · any LNS
Switch From AnywhereMacSet relays for fans, pumps, lights

In plain terms

What Is a Smart Building IoT Solution, and How Does It Relate to a BMS?

A smart building IoT solution puts wireless sensors in the rooms, plant areas and basements of an office, hospital, hotel or campus, so air quality, occupancy, energy, temperature and water levels reach the facility team automatically, and fans, pumps and lights can be switched from the same dashboard.

Macnman builds the hardware for it: indoor sensors, Modbus converters for the meters and the BMS, controllers and indoor gateways on open standards, so the data goes to the platform you choose.

  • Designed and made in Pune, India
  • LoRaWAN, Wi-Fi and Bluetooth LE
  • No mandatory subscription

Your building

  1. Sense

    CO₂, climate, people, level

  2. Convert

    Energy meters, BMS Modbus

  3. Control

    Fans, pumps, lighting

  4. Connect

    LoRaWAN, Wi-Fi, BLE

  5. Integrate

    MQTT, HTTPS, BMS

Five steps from the room to the screen. Macnman makes the hardware for the first four; the fifth is the BMS or dashboard you already use or choose.

The problem

Problems Facility Teams See Every Day, and the Sensor That Shows Each

Buildings waste energy on empty floors, run HVAC on a timer instead of on the people inside, and learn about a stuffy meeting room or a wet basement from a complaint. Each one is a measurement that is not being taken.

  • Energy meters in a building electrical room

    High Energy Consumption

  • Indoor air quality sensor in an office

    Poor Indoor Air Quality

  • Occupancy sensing in an office floor

    Lack of Occupancy Insights

  • Washroom monitored with odor and occupancy sensors

    Washrooms Judged by Complaints

  • HVAC plant room equipment

    Reactive HVAC Control

  • Bluetooth tags on equipment inside a building

    Assets That Go Missing

Get a quote

Need sensors for an office, hospital, mall or campus?

Tell us the building type, the floors and basements, the BMS or dashboard in use and whether you are the facility manager, the FM company, the integrator or the builder. A product engineer replies within one working day with the kit for a pilot floor.

  • Reply within one working day
  • Designed and built in Pune, India
  • WPC compliant, RoHS conformant

Air, people, energy, water and plant, with the hardware behind each

Key Smart Building IoT Applications

HVAC Monitoring & Plant Control — IoT deployment

01 / 07

HVAC Monitoring & Plant Control

  • Threshold Rules
  • Automated Comfort
  • Climate Control

Tell us the building and the floors — we will specify the hardware.

Application map

Smart Building IoT Sensors by Application

Start from the job, not the catalogue. Each row is a monitoring or control task found in most commercial buildings, with the Macnman device that does it and the network it runs on.

Hover a device to see its name; click it to open the product page, or the datasheet where there is no page yet. If your application is not listed, tell us what you want to measure and we will say what fits.

The hardware

Macnman's IoT Devices Built for Air, People, Energy and Plant in Buildings

Four device families cover the path from the room to your BMS or dashboard, all designed and manufactured by Macnman in Pune.

Curious how all your sensors can talk seamlessly over LoRaWAN?

Read our LoRaWAN Book

Use cases

Macnman's Smart Building IoT Sensors & Controllers

Indoor Air Quality industrial IoT use case illustration

CO₂, temperature and humidity sensors on the wall of each meeting room, classroom and open floorreport every few minutes over LoRaWAN or the building's Wi-Fi,and an odour sensor covers the washrooms.A reading above the threshold you settells the BMS or the facility team to ventilate the room, not the whole floor.

Applications

What Can You Monitor and Control in a Building?

A smart building is built one application at a time. Pick one to see what it measures and the hardware behind it.

Energy Sub-Metering for Tenants, Floors and Chillers

Most buildings meter energy at the incomer and apportion the rest. An energy monitoring system starts with the sub-meters already fitted: a MacSync converter reads their Modbus registers on each floor, tenant feeder and chiller, and sends kWh, demand and power factor at the interval you set. On Wi-Fi the converter buffers 30,000 records through a network outage; on LoRaWAN one indoor gateway serves the whole block.

  • kWh and kW
  • Power factor
  • Tenant and floor feeders
  • Chillers and AHUs

Planning a Smart Building Project? Let's Talk Through the Details Together

Chat with the Experts

Capabilities

End-to-End Smart Office & Smart Building IoT Product Portfolio

Scalable building automation hardware including IAQ sensors, energy meters, people counters, HVAC controllers, safety systems, and IoT gateways for modern offices

End-to-End Smart Office & Smart Building IoT Product Portfolio Scalable building automation hardware including IAQ sensors, energy meters, people counters, HVAC controllers, safety systems, and IoT gateways for modern offices illustration

Why projects stall

What Stops a Building IoT Project, and What Removes It

Facility teams already know what they want to see. What stops them is the cost of getting a reading from a room on the sixth floor to the screen in the control room.

Cabling in a finished buildingEvery new sensor means a ceiling opened and a cable pulled.
What removes it: Battery-powered wireless sensors stick to the wall and report for years with no cable at all.
The BMS cannot see itMeters and plant beyond the BMS cabling were never connected.
What removes it: They have RS485 Modbus or a 4–20 mA output, and a converter reads that into the BMS or a broker.
Rooms counted by booking, not by peopleThe calendar says occupied; the room is empty.
What removes it: A people counter over the door reports who is actually there, without a camera.
Basements beyond Wi-FiPlant rooms, car parks and tanks sit where access points do not reach.
What removes it: One indoor LoRaWAN gateway covers floors and basements that Wi-Fi never did.
Tenants want their own dataA single building dashboard cannot be shared by tenant.
What removes it: Open MQTT and HTTPS send each feeder's data to whichever platform the tenant uses.
Platforms that lock you inDevices tied to one vendor's cloud make the data hard to move.
What removes it: Open LoRaWAN, MQTT and HTTPS send it wherever you decide.

Integration

How Do You Add Sensors to an Existing Building Without Rewiring It?

Use wireless sensors for the rooms and converters for the plant. Battery-powered LoRaWAN or Wi-Fi sensors go on the wall with no cable, and a MacSync converter wired to the Modbus port of the energy meters, chillers and AHUs already on site reads them into the BMS or a broker. One indoor gateway typically covers several floors and the basement.

This is the lowest-risk way into building IoT, because the converter only reads unless you choose to send a write, and nothing changes in the BMS logic. Start with one floor or one plant room, run it on your own BMS, broker or dashboard, and extend the same network floor by floor.

Wireless sensors
CO₂, temperature, humidity, odor, noise, people counting and level, on a battery that lasts for years, reporting over LoRaWAN or the building's Wi-Fi.
RS485 Modbus RTU
Energy meters, chillers, AHUs, VFDs and generator controllers. Registers are read on a schedule and can be written from the server.
4–20 mA and 0–10 V
Plant transmitters and analysers already in the field; the converter can power the sensor and reads it at 12-bit resolution.
Where the data goes
Any LoRaWAN network server, an MQTT broker or an HTTPS endpoint, on-premise or hosted, with no mandatory subscription.

IoT and the BMS

IoT Sensors and Your Building Management System (BMS): Do You Need Both?

A building management system controls the plant it was wired to. Wireless IoT sensors reach the rooms, meters and basements it was never wired to. Most buildings end up with both, and this is how the work divides.

CompareBuilding management system (BMS)Wireless IoT sensors (Macnman)Together
The jobControls chillers, AHUs, pumps and lighting through wired controllersMeasures air, people, odour, level, temperature and energy where no cable runsThe BMS keeps control; the sensors tell it what each room and feeder is doing
Where it reachesPlant rooms and the points on its field busAny room, washroom, tank, basement or tenant feeder, on a batteryEvery floor and the basement on one indoor LoRaWAN gateway, plus the plant on the bus
Adding a pointA controller input, a cable, a ceiling opened and a programming visitA sensor on the wall, set up from a phone; no cable, no BMS changeNew points arrive as MQTT or HTTPS tags the BMS or dashboard subscribes to
DataSetpoints, statuses and alarms from its own controllersCO₂, temperature, humidity, people counts, odour level, tank level, kWh per feederOne history: plant and rooms side by side
ControlClosed-loop control of HVAC and plantMacSet relays switch fans, pumps and lighting circuits on thresholds and schedulesSupervisory rules on the wireless points; the BMS loops stay as they are
If the network dropsKeeps running on its controllersControllers keep local rules; the Wi-Fi converter stores 30,000 records and forwards them laterNothing stops; gaps are filled when the link returns
Is it mandatoryNot for a small building; many run without oneWorks with a BMS, with a dashboard, or with a plain MQTT brokerA building without a BMS can start with sensors and a dashboard and add control later

Wireless IoT does not replace the BMS and should not carry fire, life-safety or fast closed-loop control. It adds the points the BMS never had.

Integration

How Macnman Devices Connect to a BMS, Step by Step

Six steps from a sensor on the wall to a point on the BMS graphic. An integrator can do the first five from the published documents before a single device is mounted.

  1. 01

    Device to gateway

    LoRaWAN sensors and converters join an indoor Setu X1 or an outdoor MacLink Gen-2 gateway; Wi-Fi devices join the building's SSID and publish MQTT or HTTPS directly.

  2. 02

    Network server, on-premise or hosted

    ChirpStack runs on the gateway or on a server in the building, or the devices register on The Things Stack or another hosted server. The building holds the keys.

  3. 03

    Decode the payload

    The published decoders on GitHub turn each uplink into named fields with units: co2_ppm, temperature_c, humidity_pct, people_in, level_cm, kwh.

    Decoders on GitHub
  4. 04

    Into the BMS or dashboard

    The network server, or the Wi-Fi device itself, publishes MQTT or HTTPS. A BMS or IBMS with an MQTT or REST driver subscribes directly; one that speaks only BACnet takes the feed through a third-party protocol gateway or the integrator's middleware. Macnman devices do not speak BACnet natively.

  5. 05

    Name the points and set the alarms

    Each field becomes a point with a name, a unit and a stale-data alarm, so a sensor that stops reporting is seen as a fault, not as a flat line.

  6. 06

    Pilot one floor, including an outage

    Run one floor for a few weeks on the real BMS, pull the WAN cable once to see the stored records arrive afterwards, then add floors to the same gateway.

Choosing a network

LoRaWAN, Wi-Fi or Bluetooth LE: Which Network Inside a Building?

Most buildings end up with more than one, and that is fine. The right network depends on where the point is and what it has to carry.

CompareLoRaWANWi-FiBluetooth LE
InfrastructureAn indoor gateway per block, or an outdoor gateway per campusThe access points already installedA BLE to Wi-Fi gateway per zone
Typical reachSeveral floors and the basement from one indoor gatewayUp to about 100 m indoors per access pointA zone or a room around each gateway
PowerYears on a batteryYears at 15-minute or longer intervals, less at fast ratesYears on a coin or AA-size cell in the tag
Best forSensors spread across floors, plant rooms and car parksSensors and converters inside good coverage, with larger payloadsMovable assets and beacons
Data goes toAny LoRaWAN network serverAn MQTT broker or HTTPS endpointThe gateway forwards tag data over Wi-Fi

LoRaWAN bands: IN865 for India and EU868 for Europe, plus US915, AU915 and RU864, with KR920 and AS923 on selected products. Wi-Fi devices use dual-band 2.4 GHz and 5 GHz with WPA2 and WPA3.

Architecture

Smart Building IoT Architecture: Sensor, Gateway, Network Server and BMS

Four stages. The first is the building you already run and the last is the BMS or dashboard you choose; Macnman builds what sits between them.

  1. 01

    Your building

    Floors, meeting rooms, washrooms, plant rooms, tanks, car parks and the meters and HVAC already installed.

  2. 02

    Devices

    Sensors measure air, people, climate and level; MacSync converters read Modbus and analog plant; MacSet controllers switch.

    Made by Macnman

  3. 03

    Network

    An indoor LoRaWAN gateway, the building's Wi-Fi, or a BLE to Wi-Fi gateway for tags.

    Gateways by Macnman

  4. 04

    Your BMS or dashboard

    A LoRaWAN network server, MQTT broker, BMS, IBMS or cloud dashboard, on-premise or hosted.

Readings travel from the building to the platform. Commands, such as a relay switch or a register write, travel back the other way.

Choosing a radio

Where LoRaWAN Beats Wi-Fi in a Building, and Where It Does Not

Wi-Fi is already there, which makes it the obvious first choice. It stops being the right one where the access points do not reach or where a sensor must run for years on a battery.

CompareLoRaWANWi-Fi
Basements, plant rooms and car parksCovered by one indoor gatewayUsually beyond the access points
Hundreds of battery sensorsYears per battery, 2,000+ devices per gatewayShorter life at fast rates; each device is a Wi-Fi client
Energy meters and BMS plantSmall payloads; fine for scheduled register readsLarger payloads; many registers at once
IT involvementYour own gateway on a separate networkAccess to the building's SSID and IT approval
Recurring costNone per device on a private networkNone beyond the existing Wi-Fi

Many buildings run both: LoRaWAN for the sensors spread across floors and basements, Wi-Fi for the plant and meters inside coverage.

Green building data

Indoor Air Quality and Energy Data for LEED, WELL, IGBC and ASHRAE 62.1

Green building frameworks ask for measured indoor air and energy data. The devices on this page supply the measurements; the certifying body decides the credit against the current version of its standard.

FrameworkWhat it looks at, in broad termsData a Macnman device supplies
ASHRAE 62.1 (ventilation for acceptable indoor air quality)Ventilation rates for occupied spaces; demand-controlled ventilation schemes commonly use CO₂ as the occupancy signalCO₂ per zone from the MacSync LCO2 X1, 400 to 5,000 ppm, ±(50 ppm + 5 % of reading), with temperature and humidity
LEED (indoor environmental quality and energy credits)Enhanced indoor air quality strategies, including CO₂ monitoring in densely occupied spaces, and building-level energy meteringCO₂, temperature and humidity per room; kWh per feeder from existing meters read through a MacSync converter
WELL Building Standard (air concept)Air quality monitoring with data made available to occupants and operatorsCO₂, temperature and humidity on an open MQTT feed the display or dashboard can read; odour level in washrooms
IGBC green building ratingsIndoor air quality monitoring and energy sub-metering in several rating systemsCO₂ and climate per zone; tenant, floor and chiller sub-metering from the meters already fitted
Indian indoor environmental guidance (ISHRAE and NBC)Ranges for indoor temperature, humidity and CO₂ in occupied buildingsContinuous readings and a history for every zone, with threshold alerts

The framework descriptions are summaries, not clause text. Confirm each requirement against the edition your project is registered under; a Macnman device supplies the measurement, it does not confer the credit.

Scoping

Facility managers ask for a per-sensor figure; the project sits in four lines, and the sensor is only one. Send the floor count, the point list and the platform in use and we scope all four.

Points per floor

One CO₂ sensor per meeting room or open-plan zone, a people counter per entrance that matters, an odour sensor per washroom block, a level sensor per tank. The point list sets the device count.

Points

Floors and basements

One indoor Setu X1 typically covers several floors and the basement; towers, long blocks and deep basements add gateways. A coverage check on the real floor settles the count.

Coverage

Reporting interval

Every 10 or 15 minutes suits air quality and energy; faster rates cost battery on Wi-Fi devices and add nothing to a trend. The interval is set from the phone and can change later.

Interval

Integration target

An MQTT-capable BMS or dashboard takes the feed directly; a BACnet-only BMS needs a protocol gateway in the integrator's scope. This line, not the hardware, is where building projects vary most.

Integration

Planning coverage for a building or campus? Size it before you order.

Open the Planning Tools

Building types

Smart Building Solutions for Offices, Hospitals, Hotels, Malls and Campuses

The devices are the same from one building to the next. What changes is what gets measured.

Offices and IT parks

Air quality, occupancy and tenant sub-metering across floors.

  • CO₂ per meeting room
  • People counting
  • Tenant feeders

Hospitals and healthcare

Pharmacy and ward temperatures, washrooms and movable equipment.

  • Cold room records
  • Washroom odor
  • Asset tags

Hotels and hospitality

Guest-floor climate, plant rooms and water tanks.

  • Zone temperature
  • Pump and tank control
  • Energy by block

Malls and retail

Footfall, washrooms, car park guidance and common-area switching.

  • People counting
  • Parking bays
  • Lighting schedules

Schools and campuses

Classroom CO₂, campus coverage and water tanks across buildings.

  • Classroom air quality
  • Campus gateway
  • Tank levels

Data centres and server rooms

Continuous temperature and humidity with on-board logging.

  • Rack-area climate
  • Outage-proof logging
  • Threshold alerts

Warehouses and logistics

Storage conditions, door events and the whereabouts of assets.

  • Ambient conditions
  • Door status
  • Bluetooth tags

Residential societies

Water tanks, pumps, common-area lighting and basement parking.

  • Tank and sump level
  • Pump control
  • Parking guidance

Deployment

From One Floor to the Whole Building

Building IoT works best started small. A pilot on one floor proves the coverage and the data path, and the same network then takes on more points.

  1. 01

    Pick one problem

    Choose a single measurable job: one floor's air quality, one plant room, one tank. Tell us the floor plan, the distance to the control room and how often you need a reading.

  2. 02

    Check coverage

    Estimate gateway placement and access-point coverage with the free planning tools, or send a floor plan and we will do it.

    Network planning tools
  3. 03

    Install and configure

    Sensors mount on the wall, converters wire to a spare Modbus port, and every device is set up from a phone with the Maya app over Bluetooth. There is no programming.

  4. 04

    Connect and scale

    Point the devices at your BMS, broker or network server, confirm the data arrives, then add floors to the same network.

Why Macnman

A manufacturer of smart building IoT sensors in Pune, not a reseller: the people who answer your questions are the people who designed the device.

Designed and made in India

Hardware, firmware and enclosures are designed and manufactured in Pune, with engineering support in Indian Standard Time.

Made in India

Open standards, no lock-in

LoRaWAN, Modbus, MQTT and HTTPS. The devices work with any LoRaWAN network server, any broker and the BMS you already run, with no mandatory subscription.

Open

Built to disappear into a building

Compact matte-white housings, battery power for years, and Wi-Fi variants for floors that already have coverage.

Discreet

Customised at volume

Firmware, payloads, enclosures and branding adapted for building platforms, integrators and project orders.

OEM

Data ownership, security and outages

IT and facilities teams ask the same questions before a sensor goes on the wall. The answers come from the datasheets.

Your network, your keys

LoRaWAN is a separate radio network on the building's own gateway, encrypted with AES-128 and keys per device; it does not join the corporate LAN. Wi-Fi devices sit on the SSID or VLAN you choose and publish MQTT with TLS or HTTPS.

Security

On-premise if you want it

ChirpStack can run on the Setu X1 gateway or a server in the building, with the MQTT broker beside it, so no reading has to leave the site. There is no Macnman account in the path and no subscription.

Ownership

Read-only on the plant

Converters read meter and chiller registers in parallel and write nothing unless you configure it; the BMS loops are untouched. MacSet controllers switch only their own relays.

Read-only

Through an outage

The Wi-Fi converter and the Wi-Fi temperature and humidity sensor keep 30,000 records on board and forward them when the link returns; controllers keep their schedules and thresholds locally. A silent sensor is raised as a stale-data alarm.

Outages

FAQ

Smart Building IoT Solutions in India: Frequently Asked Questions

Wireless sensors in the rooms, washrooms, plant areas, tanks and car parks of a building, converters that read the meters and plant already installed, controllers that switch fans, pumps and lighting, and a gateway that carries all of it to the building management system (BMS) or a dashboard. The point is measurement where no cable runs: CO₂ in a meeting room, people through a door, odour in a washroom, level in a tank, kWh on a tenant's feeder. Macnman makes the hardware; the software is the BMS or dashboard you already run or choose.

Both, in a building that has a BMS; neither is mandatory in one that does not. The BMS controls the plant it was wired to. Wireless sensors reach the rooms, meters and basements it never reached, and feed them to it over MQTT or HTTPS. A building without a BMS can start with sensors and a dashboard and add a MacSet controller for supervisory switching; nothing about the sensors assumes a BMS exists.

The job is the same, supervising and recording what field controllers do, and the vocabulary differs by industry: a BMS runs a building's HVAC, lighting and plant, while SCADA runs process and utility plant. Macnman devices deliver data to either the same way, as MQTT or HTTPS from the network server or the Wi-Fi device.

Battery-powered LoRaWAN or Wi-Fi sensors stick to the wall and report for years with no cable; one indoor Setu X1 gateway covers several floors and the basement. For the plant, a MacSync converter wires to a spare RS485 port or in parallel with a 4–20 mA signal and only reads, so the BMS logic is untouched. The page section above walks through it.

Over MQTT or HTTPS. The LoRaWAN network server decodes each uplink with the published codec and publishes named fields; a BMS or IBMS with an MQTT or REST driver subscribes directly, and the Wi-Fi devices publish the same way without a network server. Macnman devices do not speak BACnet natively: a BACnet-only BMS takes the feed through a third-party protocol gateway or the integrator's middleware. Modbus is what the converters read on the plant side, not how they talk to the BMS.

Yes, through a converter. A MacSync LX1 or WX1 polls the meters on the RS485 line as a Modbus master and sends kWh, demand, voltage, current and power factor on the interval you set, over LoRaWAN or Wi-Fi, to the network server or broker the BMS reads. The meters stay as they are; the converter only reads.

Most tenant and floor feeders already carry a Modbus energy meter. One MacSync converter reads every meter on the RS485 line and sends each meter's registers separately, so each tenant's consumption lands as its own point and can go to the tenant's own dashboard over MQTT. No meter is replaced and no panel is rewired.

Yes, with planning. An indoor Setu X1 gateway typically covers several floors above and below it and the basement; thick cores, long blocks and deep car parks add a second gateway. The sensor that proves it is a CO₂ or level sensor at the real mounting point with the Maya app's Ping test, before the order.

As a working estimate, one indoor gateway per block of several floors, plus one for a deep basement car park and an outdoor MacLink Gen-2 for a campus. Each gateway carries more than 2,000 devices on eight channels, so the count is set by coverage, not by the number of sensors. The planning tools on this site give a first count from the floor plan.

No. LoRaWAN in India runs at 865 to 867 MHz; Wi-Fi runs at 2.4 and 5 GHz. They do not share a band, and the LoRaWAN gateway is a separate device on its own network, not a Wi-Fi client. Only the gateway's backhaul, if you choose Wi-Fi for it, touches the building network.

Wi-Fi where the access points reach and the device can be a Wi-Fi client without an IT argument: plant rooms, server rooms, a single polyhouse of offices. LoRaWAN for hundreds of battery sensors across floors, basements and car parks on one gateway of your own. Most buildings run both, and the table on this page lists where each wins.

No internet is needed. ChirpStack can run on the Setu X1 gateway or on a server in the building, the MQTT broker beside it, and the BMS on the same LAN, so readings never leave the site. A hosted network server or cloud dashboard is an option, not a condition.

Yes. LoRaWAN in India uses the IN865 plan in the 865 to 867 MHz band, delicensed by the Wireless Planning and Coordination wing for low-power devices, so a building can run its own gateway without a spectrum licence. Macnman devices are built for IN865 and are WPC compliant.

Each device joins with its own keys and encrypts its payload with AES-128; the network server checks every frame against a counter, so a captured packet cannot be replayed. The network is separate from the corporate LAN. The Wi-Fi devices publish MQTT over TLS or HTTPS on the SSID or VLAN you assign.

You own it, and no subscription is required. The devices send to your own network server, broker, BMS or the cloud you choose; payload formats are published, and there is no Macnman account in the path. Moving the data later is a change of broker address, not a renegotiation.

CO₂ is used as an occupancy signal rather than as a pass or fail limit. Outdoor air is roughly 400 to 450 ppm; a common practice in demand-controlled ventilation is to raise the air supply when a room rises several hundred ppm above outdoor, and many building IAQ policies set a figure around 1,000 ppm. Set the threshold your IAQ policy or consultant specifies; the MacSync LCO2 X1 reads 400 to 5,000 ppm to ±(50 ppm + 5 % of reading), so the alert lands where you put it.

On an interior wall at seated head height, roughly 1.1 to 1.7 m, away from doors, windows, supply diffusers and anyone breathing directly on it, in the part of the room people occupy. Avoid the return-air grille and direct sun. One sensor per meeting room or per open-plan zone served by the same air handler is the usual starting point.

The frameworks ask for measured indoor air quality and energy data; the CO₂, temperature and humidity sensor supplies the air readings per zone and a MacSync converter supplies kWh per feeder from the meters already fitted. The table on this page lists what each framework looks at in broad terms. The device supplies the measurement; the certifying body awards the credit against the edition your project is registered under.

India's references are ISHRAE's indoor environmental quality standard for temperature, humidity and CO₂ ranges, the National Building Code's ventilation provisions, and the IGBC and GRIHA rating systems for green buildings; many corporate occupiers also apply ASHRAE 62.1 or WELL. Check the current edition your project follows; the sensors give the continuous CO₂, temperature and humidity record each of them asks for.

Yes. The MacRay ToF sensor over a door counts people in and out with an infrared time-of-flight grid, 4 to 400 cm range, programmable field of view, with no image and no identity captured. It runs from mains with a backup battery, on LoRaWAN or Wi-Fi, and reports counts and zone presence on the interval you set.

A LoRaWAN or Wi-Fi odour sensor in the washroom reads ammonia and hydrogen sulphide and reports on a schedule and when the level crosses a threshold; a people counter at the door adds footfall. The facility app or BMS raises a cleaning task for that block when the reading or the count says so, instead of a fixed round. The washroom monitoring article linked on this page shows the set-up.

Yes. A MacRay LUS X1 above the water in the overhead tank or the sump reports the level; a MacSet LX1 at the pump switches on a low threshold and off on a high one, with the rule running on the controller so it works through a network drop. The BMS sees the level and the pump state as points on the same feed.

With the Wi-Fi temperature and humidity sensor, which keeps 30,000 readings on board and forwards them when the network returns, so the record has no gap; a PT100 probe through the Wi-Fi RTD sensor covers plant and process temperatures. LoRaWAN temperature sensors cover the floors and basements the Wi-Fi does not reach, with alerts on drift either way.

The LoRaWAN sensors run on a 19 Ah cell and their datasheets give multi-year figures by reporting interval; the Wi-Fi sensors cost more energy per message, so a 15-minute interval gives years and a 1-minute interval does not. The people counter and the controllers run from mains. The LoRaWAN and Wi-Fi battery life calculators on this site estimate the figure for your interval and spreading factor.

Yes, and that is the recommended way in. The pilot kit is one gateway and a few sensors: CO₂ for the meeting rooms, a people counter at the entrance, an odour sensor in the washroom block, a converter on the floor's energy meter. Run it on the real BMS or dashboard for a few weeks, including a deliberate network outage, then add floors to the same gateway.

Decoders are published on GitHub for the main sensors and converters, datasheets and user guides carry the payload formats, and register maps for the converters are documented. White-label firmware, payloads, enclosures and branding are available on project volume; the partner programme on this site is the route for FM companies and integrators.

Four lines: the number of points per floor, the gateways needed for the floors and basements, the reporting interval, and the integration target, which is where projects vary most: an MQTT-capable BMS takes the feed directly, a BACnet-only one needs a protocol gateway. Send the floor count, the point list and the platform in use and we scope all four.

Hardware, with the documents and support to connect it: sensors, converters, controllers and gateways, the decoders, and engineering help with the integration. The dashboard is the BMS, IBMS or platform you already run or choose; the devices publish to it over MQTT or HTTPS with no subscription.

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