Watched over.
Never watched.
Know your parent is okay — that they got up, moved through their day, and slept and breathed easy — with a sensor that has no camera, no microphone, and can prove it never watched them. Peace of mind that doesn't cost them their dignity.
Local to your Home Assistant · every reading signed & verifiable · nothing phones anywhere.
To know they're safe, you have to surveil them. So you don't.
Every option asks you to trade a parent's dignity for your peace of mind — or trust a company with the inside of their home. So most families just… worry.
A camera in their home
A lens in a parent's living room or hallway is a betrayal they'll refuse — and it's footage that lives in a company's cloud, hackable and subpoenable.
✕ Rejected on dignityA panic button
Only works if they wear it and can press it. The moment that matters most — a fall, a bad night — is exactly when they can't.
✕ Useless when it countsA cloud "wellness" sensor
Better posture, but you still hand a company a live feed of your parent's most private hours — closed firmware, a server you can't inspect, terms that can change.
✕ Trust, unverifiableThe reassurance, not the surveillance
A quiet 60 GHz radar on the wall or nightstand reads presence, movement, and — at the bedside — breathing. It turns their day into a handful of calm, signed signals on your Home Assistant. No images. Ever.
- 7:14Up and about. Movement in the bedroom, then the kitchen.✓ signed · verified
- 9:40Active morning. Normal room-to-room activity.✓ signed · verified
- 14:05Resting. Settled in the armchair — breathing steady.✓ signed · verified
- —If a morning ever stays quiet, you get a gentle nudge to call — not an alarm, just a heads-up.
Don't trust us. Verify.
Privacy here isn't a promise in a policy you have to believe. It's a property of the hardware and the math — one you can check yourself.
It physically cannot film your mother
No camera, no microphone. The raw radar signal never even leaves the sensor's own chip — the rest of the device only ever sees digested numbers (someone's present · they're moving · a breathing rate). There is no video path to hack, leak, or subpoena, because there is no video.
Every reading is signed — and the code is open
Each signal is an Ed25519-signed entry in a tamper-evident chain, so nothing — not even us — can quietly alter the record. The firmware compiles to run in your browser, so you can watch the real code and confirm there's no hidden path. It's open source: many eyes, not our word.
It answers to your home, not our cloud
It speaks to your Home Assistant, on your network. No account, no company server, nothing phoning home — so there's no database of your parent's private hours for anyone to breach, sell, or hand over.
It refuses to overclaim
Breathing and heart signals are hard-suppressed unless exactly one person is in range — the device won't guess. It attests its own firmware on boot, so it can't be silently swapped. Built to under-promise and prove, not to impress.
Open the Lab and run the actual firmware in your browser. Watch it emit a signed presence claim — and watch for a video frame that never comes, because the code to make one isn't there.
Verify it yourself in the Lab →The only one that's both passive and provable
| Canary Sense · Wellbeing | Indoor camera | Panic button | Cloud radar | |
|---|---|---|---|---|
| Can it capture video of them? | Never — no camera exists | Yes, always | No | No |
| Works if they've fallen & can't act? | Yes — it's passive | If someone's watching | No — must be pressed | Yes |
| Does their data leave the home? | No — local to your HA | Yes — the cloud | Yes — the cloud | Yes — the cloud |
| Can you verify the privacy yourself? | Yes — signed, open, runnable | No | No | No — closed |
| Will a parent accept it? | It's dignified — no lens | Usually refused | If they'll wear it | Often |
Give someone you love a quiet guardian.
See exactly how it works before anything enters their home — the real device, in your browser, proving what it can and can't do.
Honest by default: this is peace-of-mind wellbeing monitoring, not a medical device, and not a substitute for emergency services or in-person care. Breathing and heart readings are close-range and single-person by design. We'd rather tell you the edges than oversell the middle.