Enterprise-grade sensors for every classroom.
Every Citadel deployment pairs Kaiterra Sensedge Go monitors in your classrooms with an outdoor monitor at every school, all on one platform your whole team can use.
Citadel is Kaiterra’s exclusive K-12 partner in the United States.
The school standard: inside and out
Every school gets both. A classroom reading means the most next to the air outside the building.
Sensedge Go
- Peels and sticks to the wall in under a minute. No wiring, no disruption to class.
- Up to 17 measurements, from CO2 and particulates to sound, light and occupancy.
- Battery life up to 8 years, or plug in with USB-C or PoE.
- Swap-in sensor modules replace traditional calibration.
Sensedge Go Outdoors
- All-weather and battery-powered, with no outdoor cabling.
- Measures particulates, CO2, temperature, humidity and air pressure, with NO2, CO and ozone on select models.
- Shows whether a problem started inside or came from outside, like wildfire smoke or traffic, and when it’s safe to bring in outdoor air.
- Battery life up to 8 years.
The four pillars of a healthy classroom
Air, thermal comfort, sound and light are the four pillars of indoor environmental quality. Each shapes how students feel, focus and learn, and WELL sets standards for all four. Every classroom sensor can measure up to 17 conditions across them, plus how the room is used.
Fresh, clean air is linked to fewer sick days and better schoolwork.
Carbon dioxide shows how well a room is ventilated. Particles and gases show what students are breathing.
- See which rooms need more fresh air
- Catch smoke, fumes and pollution before complaints start
Rooms that run too hot or too cold make it harder to focus and learn.
Temperature and humidity also show whether your HVAC is doing its job.
- Find rooms your HVAC isn’t keeping comfortable
- Spot damp conditions that can lead to mold, and dry air that irritates eyes and throats
Students learn by listening, and noise gets in the way.
The national classroom acoustics standard calls for quiet rooms because noise makes the teacher harder to understand, especially for younger students and English learners.
- Catch rooms with acoustic issues that impact attention and focus.
- Trace noise to its source: a steady low rumble points to HVAC, sudden spikes to hallways, traffic or equipment
Light shapes how well students see and how alert they feel.
Light is the body’s main signal for its daily clock. That’s why WELL looks at both the amount and the color of light, not just whether the lights are on.
- Confirm every room has enough light for reading and close work
- See whether daytime lighting supports alertness, using WELL’s circadian lighting guidance
- Find lights left on in empty or sunlit rooms
Know when each room is in use, and the conditions around it.
Occupancy shows when each room is actually in use. Air pressure adds weather context to every reading.
- Match heating, cooling, ventilation and lighting to when rooms are actually used
- See how every space is really used, for scheduling, capacity and long-range facility planning
An outdoor monitor at every school gives every indoor reading context.
- Tell whether a problem started inside or came from outside, like wildfire smoke or traffic
Calculated from the readings above
The platform combines measurements to answer the questions your team and board actually ask.
Some measurements, including sound, use add-on modules or a specific model. We’ll configure the right set for each district.
Simple for your IT team
Each school gets a Kaiterra gateway. Monitors reach it over long-range wireless that passes through multiple floors and walls, and one gateway covers a large area.
The gateway connects over cellular, so the whole system can run off your district network, or over ethernet if you prefer.
Readings flow to one platform, with integrations for building automation (BACnet/IP and Modbus), REST API and MQTT.
Every reading, in one place
Live readings for every room, trends over time, alerts when a room drifts out of range, and WELL-ready compliance reports.
Citadel turns it into ranked priorities and plain-language reports for your team and your board.
Ask your buildings anything.
Kaiterra AI reads every monitor in your district alongside the context that explains it: operating hours, space types, HVAC equipment, floorplans, outdoor air, and standards like WELL and ASHRAE. Ask a question in plain English and get a clear answer, with the data behind it.
Citadel sets it up for your district and turns the answers into action.
Dive deep into problem areas
Trace a hot classroom or a CO2 spike to its root cause, with recommended next steps.
Report to your team in one click
Turn a question into a clear summary or presentation your board can read.
Works with the tools you already use
Get answers in Slack or Microsoft Teams, and connect your Kaiterra data to your own AI tools through MCP.
The full Kaiterra line
For new construction, wired networks, rooms that need a display, or HVAC ducts, Citadel specifies the right Kaiterra monitor for each space.
Sensedge Go
Wireless and battery-powered, up to 8 years. Our classroom standard.
Sensedge Mini
Compact, with Wi-Fi or Ethernet, PoE options and BTL-certified BACnet. Built for new construction and networked rooms.
Sensedge
A touchscreen display for lobbies, offices and rooms where people want to see the air. Connects over Wi-Fi or Ethernet.
Sensedge Go Outdoors
Wireless, all-weather and battery-powered, up to 8 years. Our school standard.
Sensedge Mini Outdoors
Wired, all-weather and ready for your building automation system.
Sensedge Duct
Mounts in supply and return ducts, wired or wireless, with models that track filter efficiency.
Specs and documentation
Everything your engineers, IT team and purchasing need: datasheets, certifications, installation guides, user manuals, network and security documents, and ready-to-use specification templates for bid documents.
Ready to see every room?
Tell us about your district and buildings. We’ll show you what a deployment looks like, what it costs, and how easy it is to get started.