Lab-grade sensing, clip-on size
A Sensirion SEN66 core measures PM1–10, CO₂, VOCs, NOx, temperature and humidity — plus a barometer and GPS.
One device. Every signal.
- PM1–10Particulates
- CO₂Ventilation
- VOCChemicals
- NOxCombustion
- °CTemperature
- RHHumidity
- hPaPressure
- GPSLocation
Meet Perch
Everything around you,
finally in context.
Oura and Whoop proved the playbook for physiological metrics. Perch runs it for environmental ones — CO₂, particulates, VOCs, NOx, pressure, temperature and humidity.
Scores you can act on
CognAir, SleepAir, FitAir and HealthAir turn raw air into research-based scores that personalize with use.
Know your triggers
Built for people with allergies, asthma, migraine, eczema, arthritis and MS — see which conditions tend to precede a flare.
Symptom tracking
Log how you feel in seconds. Perch cross-references your exposure to surface patterns — not diagnoses.
An AI companion
Plain-language analyses and recommendations, grounded in your own measured environment.
Built to carry
E-ink display, multi-day battery and a carabiner loop. Pairs and syncs with the app over BLE.
How it works
Track, score, and manage
your environment.
Track
The clip-on sensor follows you. GPS and BLE tie every reading to your spaces — bedroom, car, office, the morning run.
Score
CognAir, SleepAir, FitAir and HealthAir turn raw air into research-based, patent-pending scores that personalize with use.
Manage
Plain-language AI analyses and recommendations. Log symptoms and Perch cross-references your exposure to surface triggers.
For campuses & teams
Measured, not modeled — block by block.
Perch fleets give universities, employers and researchers street-levelStreet-level indoor and outdoor environmental data from real people’s days — live on the Perch Map and through our API. Campus betas are forming now.
Stay in the loop
Be the first to breathe easier.
Launch news, campus-beta invites and early-supporter pricing. A few emails a year — unsubscribe anytime.