Bad air doesn’t announce itself. Collie’s IoT sensors read CO2, PM2.5, PM10 and more in real time, turn them into a history you can trend over weeks, and raise an alert the moment a reading crosses the line you set.
Poor air quality builds up quietly — no smell, no smoke, no obvious sign — until it’s already affected the people breathing it.
Invisible until it's a problem
Without sensors, poor ventilation, dust, or off-gassing chemicals go unnoticed until someone complains — or gets sick.
No historical picture
A single reading tells you almost nothing. Knowing whether air quality is trending up or down over weeks is what actually informs a decision.
Manual, after-the-fact checks
Periodic spot-checks miss the spikes that happen in between — exactly when an automatic alert would matter most.
What it measures
Every index that matters indoors
One sensor, several pollutant indexes — read together, not in isolation.
CO₂
Carbon Dioxide
A proxy for ventilation — rising CO2 usually means stale, under-circulated air.
PM2.5
Fine Particulates
Fine particles small enough to be inhaled deeply — from traffic, dust, or combustion.
PM10
Coarse Particulates
Larger airborne particles, often from construction dust or outdoor pollution entering a space.
TVOC
Volatile Compounds
Off-gassing from paint, cleaning products, and furnishings, tracked as a single combined index.
How it flows
Sense. Trend. Alert.
01
Sense
IoT sensors sample CO2, PM2.5, PM10 and other indexes continuously, without anyone needing to walk over and check.
02
Trend
Readings build into a history, so short-term spikes and long-term drift both become visible on the same graph.
03
警报
The moment a reading crosses the threshold you set, the right people get notified — before it becomes a bigger problem.
MOD.02 · Also on the fleet
The same sensor, riding a patrol route
Fixed sensors cover fixed points. A Collie robot carries the same air quality sensing down aisles, into corners, and through areas that don’t have a wall to mount a sensor on — feeding the same dashboard, the same thresholds, the same alerts.