Know what
you're breathing
out there.
StreetSense pairs a pocket sensor node with your phone to measure air quality and noise on every run, ride and walk — then tells you how much of it you actually inhaled.
Your exact route never leaves your phone.
Inhaled
0.6 mg
Peak PM2.5
34 µg/m³
Loudest 30 s
78 dB(A)
VOC
111 idx
How it works
Three steps, then it gets out of the way.
Clip it on
A battery-powered BLE node rides with you. It pairs once and reconnects on its own.
Tag the session
Run, Cycle or Walk. That's the only setup step.
See the dose
Readings stream to your phone and become one number you can act on: what you inhaled, and where the worst 30 seconds were.
What it senses
Six things your phone alone can't tell you.
Particulates
PM1, PM2.5, PM4 and PM10, second by second — the full spread of what the traffic lane puts in the air around you.
VOCs
Volatile organic compounds along the whole route.
Ambient noise
How loud it really was, not how loud you remember.
Breathing-weighted dose
Effort matters: a hard climb pulls in more air than a stroll.
Worst moments
The junction, the underpass, the queue at the lights, pinpointed in time.
Session history
This route against that one. This hour against another.
Who it's for
People who move under their own power.
Pick the route and the hour that cost you the least.
Two loops, same distance, very different lungs. Sessions stack up until the pattern is obvious.
See what the traffic lane actually does to your lungs.
Riding harder means pulling in more air. The dose accounts for that, junction by junction.
The same loop, every day, finally measured.
The most repeated route in your week is the one worth knowing the numbers on.
Every node makes the map better.
Readings pool into a shared per-block picture. A street your node has never walked can still have an answer, because someone else walked it.
~110 m grid cells
FAQ & privacy
What leaves your phone, and what doesn't.
Does StreetSense track where I go?+
No. The phone snaps every reading to a ~110 m grid cell before it sends anything. Your precise route stays on the device; the backend has nowhere to put a coordinate.
What is a dose?+
Concentration times the air you moved, weighted by activity — milligrams inhaled, not micrograms per cubic metre.
Do I need the hardware?+
Yes: the BLE node does the sensing, the phone carries and uploads it.
How long does the node last?+
A full day of sessions on a charge; it sleeps between them.
Who else sees my sessions?+
Only pooled, grid-cell readings are shared. Individual sessions stay yours.
Start measuring your next outing.
Leave your email and we'll tell you the moment the node and app are ready to pair.